Ryker front tires size is Proprietary! Thanks again BRP........

[Leland]

I've been trying to find a source of automotive tires for the Ryker. BRP specifications for the front tire size is 145/60R/16. This tire is not to be found in the automotive world as far as I've been able to ascertain. Look here at a tire size table to confirm it yourself. https://www.tyresizecalculator.com/charts/tire-size-chart-metric-by-rim-wheel-diameter

Current standard automotive tires can be purchase in 145/80R/16 and 145/90R/16. The problem is the middle set of numbers which represent the aspect ratio of the tire, ie. the height of the sidewall. Standard auto tires will be too tall to fit within the fenders and also completely change the handling. The Nanny is not going to be happy either.

The rear tire size 205/45R/16 is not going to be a problem as automotive tires are available. This fact is heart warming since the rear tire is going to go away as smoke quit soon for some riders.

I guess the moral of the story is BRP plans on have us purchasing Ryker front tires only from the BRP dealers. That matches up well with the fact you need a huge 3ft. long torque wrench and a special socket to mount the wheels.

It looks like the Ryker has more that one shaft associated with it. Thanks again BRP........

[RykerUSA]

I certainly see your point. It is extremely frustrating but I believe it will be less frustrating than my ST when it comes to normal maintenance and service.

[BajaRon]

This is what I will be looking at when tires are needed for my Ryker. Sometimes you just have to get outside the box!

https://www.tirerack.com/tires/tires.jsp?tireMake=Yokohama&tireModel=S.drive&partnum=75TR6S&vehicleSearch=false&fromCompare1=yes

[BLUEKNIGHT911]

I've been trying to find a source of automotive tires for the Ryker. BRP specifications for the front tire size is 145/60R/16. This tire is not to be found in the automotive world as far as I've been able to ascertain. Look here at a tire size table to confirm it yourself. https://www.tyresizecalculator.com/charts/tire-size-chart-metric-by-rim-wheel-diameter

Current standard automotive tires can be purchase in 145/80R/16 and 145/90R/16. The problem is the middle set of numbers which represent the aspect ratio of the tire, ie. the height of the sidewall. Standard auto tires will be too tall to fit within the fenders and also completely change the handling. The Nanny is not going to be happy either.

The rear tire size 205/45R/16 is not going to be a problem as automotive tires are available. This fact is heart warming since the rear tire is going to go away as smoke quit soon for some riders.

I guess the moral of the story is BRP plans on have us purchasing Ryker front tires only from the BRP dealers. That matches up well with the fact you need a huge 3ft. long torque wrench and a special socket to mount the wheels.

It looks like the Ryker has more that one shaft associated with it. Thanks again BRP........

I looooooooooooooooooooooove the " Vredestein Quatrac 5 " , it has the best performance rating of any tire that will fit the Spyder's ….. The smallest front tire they have ( info from the company )is a 185/50- 16 ……...However they make about 10 sizes that will fit the rear :clap::clap: ……. go the Vredestein Co. tire site to find accurate info ……. Mike …..PS, if the choice is either mediocre tires or space out the wheels - - I would space out the wheels.

[Michaelscs]

This is what I will be looking at when tires are needed for my Ryker. Sometimes you just have to get outside the box!

https://www.tirerack.com/tires/tires.jsp?tireMake=Yokohama&tireModel=S.drive&partnum=75TR6S&vehicleSearch=false&fromCompare1=yes

Those tires are 30mm wider than the stock tires. Do you think they will fit in the fenders?

[ARtraveler]

It seems to be SOP with BRP. Lots of smart people here...and they will get the subject figured out quickly. :yes:

[WilliamTRyker]

Lots of smart people here...and they will get the subject figured out quickly. :yes:

I came here for this comment. Thank you for your "Spydy-sense".

[Peter Aawen]

Can someone who actually has a Ryker nearby to look at please post up a pic of the size & load rating info printed on the sidewall, ie the 145/60R16 75V or whatever is there - or at least copy it into a post so that those of us who don't yet have access to them can see all the important tire info?? :dontknow:

You can get a lot of info from the printed stuff on the tire, and for that matter, if anyone can find the size & bead type stamp that should be somewhere on the rim as well, that might help a lot too!! It will probably be something like 5.5Jx16H2 ET32 or it might just be a portion of that, but there should be something on the rim. The bad news is that it MIGHT be printed in the well near the valve hole on the INSIDE of the rim, ie, you'd hafta take the tire off to read it?!? :gaah:

[WilliamTRyker]

Can someone who actually has a Ryker nearby to look at please post up a pic of the size & load rating info printed on the sidewall, ie the 145/60R16 75V or whatever is there - or at least copy it into a post so that those of us who don't yet have access to them can see all the important tire info?? :dontknow:


Is this what you are looking for? It is from the right front tire.


168836

[GoandChase]

I also found this on the tire: 145/ 60r16 m/c

edit: found this on their website: MC145/60R16 66T front and MC205/45R16 77T rear.

[Leland]

I found the data below on this thread: https://www.spyderlovers.com/forums/showthread.php?116822-Ryker-Tires-vs-Spyder-(Kenda)&highlight=ryker+manual

************************************************** *******************************************

Default Ryker Tires vs Spyder (Kenda)

Good morning, curious to see what Spyder owners know from past experience of the Kenda tire experience. I have not been keeping up but I know the "stock Kenda tires support only" policy with Spyders, at one time was/was not enforced? Is it still currently same scenario? I will see if my dealer can give prices yet on stock oem tire replacement.

I looked at manual, googled the tire sizes, not a lot of options.

Front:
Ryker 600 Ryker 900
Kenda KR390 145/60R16
M/C 66T

Ryker
900 Rally
Edition
Kenda KR392 145/60R16
M/C 66T

Rear:
Ryker 600 Ryker 900
Kenda KR391 205/45R16
M/C 77T

Ryker 900 Rally Edition
Kenda KR393 205/55R15
M/C 81T

[Leland]

This is what I will be looking at when tires are needed for my Ryker. Sometimes you just have to get outside the box!

https://www.tirerack.com/tires/tires.jsp?tireMake=Yokohama&tireModel=S.drive&partnum=75TR6S&vehicleSearch=false&fromCompare1=yes

I found this forward facing photo of a Ryker. From this distance it looks like the tire Ron has in mind may fit within the fenders. It would only add 1/2 inch on each side to the current tires and the aspect ratio would be okay too.

Nice find Ron!

Perhaps Ron can measure the fender clearance on his new Ryker and give us an update?

[Peter Aawen]

Thanks guys. That info (including the rim & load/pressure info) is what I was after.

The 'J' on the rim means that the Ryker rims are STILL automotive rims with automotive beads, (ie Car rims & beads, just like the Spyder rims) and not actually Motorcycle rims or beads. I'm a little intrigued with the 'MC' they've got in the size detail, but I suspect they've done the same 'hope this fools some of you' thing as they did with the Spyders & it's actually a made up 'special motorcycle only' label. I guess I'll hafta wait until I can get one of them in my hands to disect & see what they've actually done tho...... :dontknow:

Still, I reckon that we'll find there's a reasonable selection of 'J' type beaded tires out there for small/medium sports & performance vehicles that will have the same or better load & speed ratings, that are very likely constructed just a wee tad stronger than the OE stuff, and that will last longer while providing better ride, handling, grip, durability, and even more importantly, safety.... altho they may well be wearing slightly different 'nominal' sizes on the sidewalls. Just check the ACTUAL width & rolling diameter before committing your hard earned $$! ;) And as we've found with the Spyders already, the Nanny really wont mind all that much just so long as you keep any changes reasonably close to the same variation between the front tires & the rear tire. :thumbup:

[Markubis]

Try using this tire size calculator.

https://tiresize.com/calculator/

Plug the Rykers tire size in on the left and the list on the right will show you the compatible sizes.

[Leland]

Try using this tire size calculator.

https://tiresize.com/calculator/

Plug the Rykers tire size in on the left and the list on the right will show you the compatible sizes.

Thanks Markububis, that is a great tire calculator.

It has a neat feature that allows you to compare two sizes of tires for comparison. I compared the Ryker front tire size 145/60R/16 and the Yokohama 175/50R/16. The diameter is very nearly exact, but the rub is the Yokohama is 1.2 inches wider. It may fit, perhaps Ron or someone else can take a ruler out to their Ryker and check it out for us.

[Peter Aawen]

Just be a bit wary of those tire size comparison tools, they generally only work on the tires nominal sizes, ie, that printed on the sidewall; and those sizes can be somewhat different to the tires ACTUAL physical size!! Frequently by as much as 20mm or so (in diameter &/or width) but there are a few examples out there where the variation is closer to 50mm/2" different!! :shocked:

Tire manufacturers use a variety of different methods to determine what nominal size they put on their tires, frequently even on different versions of their own tires too!! Some use the carcass diameter BEFORE the tread layers are formed & applied; while others use the completed tire INCLUDING the tread layers; &/or any combination of those & a bunch of other variations on the theme. So you really need to use the ACTUAL physical dimensions of the different tires; but those comparison tools help make a start! :thumbup:

[Sarge707]

On the Unique Ryker I will be using OEM replacement tires because they are designed for the attributes of the Special vehicle. As long as front and back get at least 15,000 miles I will use them. They should get better mileage because of the lighter weight- As long as your Not burning up the rear every stoplight.

[hypurone]

Corrected in my post below....

[Leland]

There are 145/65-16's out there.... A tad taller, same section width. But no more of a difference than some of the non-Kenda tires some of us are using on our Spyders....

@hyperone

Thanks for the suggestion. I looked on the internet for 145/65R/16 and found none. I did find some 145/65R/15 in Europe.

Perhaps you can point me to the 145/65R/16 please? When BRP made the decision to use 16 inch wheels they really locked us into Kenda tires unlike anything Spyder owners can imagine.

It's going to be much harder to fix a automotive tires to the front of a Ryker anyway you look at it.

I think potential buyers should be aware of this fact.

I also think that the decision to use a single aluminum alloy wheel retaining nut is a terrible idea. It's going to create unnecessary complications for owners in the future. If BRP had stuck with normal steel lugnuts it would be far easier to service. They are making a big sales push by saying how easy it is to maintain a Ryker, Okay well what's up with an 65 mm aluminum nut on a steel spindle. That is going to corrode and the nut is going to get damaged with impact tool usage by some unknowing user. Top it off with the fact that 225 ft/lbs of torque is required to install and uninstall the nut. This is stupid!

[Winnex3]

On the Unique Ryker I will be using OEM replacement tires because they are designed for the attributes of the Special vehicle. As long as front and back get at least 15,000 miles I will use them. They should get better mileage because of the lighter weight- As long as your Not burning up the rear every stoplight.
I’m with you on this I’ll stick with Oem tires

[Michaelscs]

@hyperone

Thanks for the suggestion. I looked on the internet for 145/65R/16 and found none. I did find some 145/65R/15 in Europe.

Perhaps you can point me to the 145/65R/16 please? When BRP made the decision to use 16 inch wheels they really locked us into Kenda tires unlike anything Spyder owners can imagine.

It's going to be much harder to fix a automotive tires to the front of a Ryker anyway you look at it.

I think potential buyers should be aware of this fact.

I also think that the decision to use a single aluminum alloy wheel retaining nut is a terrible idea. It's going to create unnecessary complications for owners in the future. If BRP had stuck with normal steel lugnuts it would be far easier to service. They are making a big sales push by saying how easy it is to maintain a Ryker, Okay well what's up with an 65 mm aluminum nut on a steel spindle. That is going to corrode and the nut is going to get damaged with impact tool usage by some unknowing user. Top it off with the fact that 225 ft/lbs of torque is required to install and uninstall the nut. This is stupid!

Leland, do you have or are you planning to purchase a Ryker? You certainly have made plenty of negative posts about it... not just this thread, but other Ryker threads. Just trying to get a feel of where your coming from. I think some of the negative posts have been unwarranted. We don't even know if some of the issues you've posted negative comments on will ever be a problem. The Ryker is too new. For example, do we know that these front tires won't be great, handle great, and last 20,000 miles?

I think there's quite a few people on this Ryker forum who are very proud and excited about their new Ryker and they don't need to be brought down by unwarranted negativity!

[Leland]

Michaelscs

I understand your comments and concerns, yes I'm in the process of making a decision to purchase a Ryker. That decision requires critical thinking and analysis. It means looking at what is good and what is not so good about a design/product/part/etc. Pointing out various limitations, design flaws or poor engineering is important and others may not have consider these matters. It is clearly within my right to make these comments. If you don't like my ideas then I'm sorry it is not my intention to offend you or others, rather to bring serious matters to the attention of the public.

Remember the old saying "Don't shoot the messenger".

People don't like to hear that they may have made a bad purchase decision or that a recall is due etc. That facts are the facts, this is a new machine, problems are appearing, short comings are also appearing. Expecting everyone to ignore these matters is not using critical thinking skills. There are others that have made similar comments pertaining to concerns regarding this product. We have to watch, listen, and discuss these matters, good or bad.

Service bulletins regarding low or possibly missing crankcase oil are worthy of discussion at any level. The fact that the choice of tires for the front of the Ryker is severely limited is also a topic that prospective purchaser should know. The fact that changing a tire requires specialized tools and the lack of these tools during a flat tire will be a serious concern are all topic that I've discussed. Yes they are negative, so what. The truth is often unpleasant.

I'll let you get the last word in for what ever you choose to say, but I'm still going to be here after your comment(s). Good day to you.

[Michaelscs]

Point taken. I guess I'm just more a "glass is half full" guy.
Maybe it's the comments like "It looks like the Ryker has more that one shaft associated with it. Thanks again BRP........" that had me more concerned.
You have a good day too.

[hypurone]

@hyperone

Thanks for the suggestion. I looked on the internet for 145/65R/16 and found none. I did find some 145/65R/15 in Europe.

Perhaps you can point me to the 145/65R/16 please? When BRP made the decision to use 16 inch wheels they really locked us into Kenda tires unlike anything Spyder owners can imagine.

It's going to be much harder to fix a automotive tires to the front of a Ryker anyway you look at it.

I think potential buyers should be aware of this fact.

I also think that the decision to use a single aluminum alloy wheel retaining nut is a terrible idea. It's going to create unnecessary complications for owners in the future. If BRP had stuck with normal steel lugnuts it would be far easier to service. They are making a big sales push by saying how easy it is to maintain a Ryker, Okay well what's up with an 65 mm aluminum nut on a steel spindle. That is going to corrode and the nut is going to get damaged with impact tool usage by some unknowing user. Top it off with the fact that 225 ft/lbs of torque is required to install and uninstall the nut. This is stupid!

GAH! I apologize! I went back to my search history and it seems I either fat-fingered my search entry or it got "auto-corrected" for me to 15"! :banghead:

[Markubis]

In regards to tire size, I see many new cars come out that have unique tire sizes. Once they are released to market then tire makers start making tires for that size. Needless to say, you most likely will not need to get new front tires for a new Ryker for at least a year or two, so in my mind, this is a non issue.
And when it does come up, I will most likely find the tire that fits it the closest. But seeing as how Can Am is putting these tires on their Rykers now, its pretty safe to say that in a year or two, there will plenty of replacement tires available.

As for the large nut to hold the tire one, buy the tool for it. It may not be available right this minute, but it will be eventually.

[BLUEKNIGHT911]

In regards to tire size, I see many new cars come out that have unique tire sizes. Once they are released to market then tire makers start making tires for that size. Needless to say, you most likely will not need to get new front tires for a new Ryker for at least a year or two, so in my mind, this is a non issue.
And when it does come up, I will most likely find the tire that fits it the closest. But seeing as how Can Am is putting these tires on their Rykers now, its pretty safe to say that in a year or two, there will plenty of replacement tires available.

As for the large nut to hold the tire one, buy the tool for it. It may not be available right this minute, but it will be eventually.

IMHO, the 16 inch wheel size is not New …. been around for decades ….. the reason there aren't many Auto tires that are narrow is because the cars they were designed for weren't Small...… I checked the Vredestein's web site ( info from the manufacturer ) …. they specialized in the European market ( for the most part ) the cars in Europe tend to be much smaller than in the USA , and the tires are narrower..... But in the 16 inch size even Vredestein smallest tire is a 185/50-16 …… The wheel can be shimmed out from the hub ...not an un-common practice. Vredestein does make quite a few FRONT tires for the Spyder 14 & 15 inch wheels :clap::yes: …….. Mike :thumbup:

[Markubis]

Agreed, 16 inch rims have been around for a long time. What throws a wrench into these tires is the wrap length of 145....its not a common size.

[cueman]

Thanks Markububis, that is a great tire calculator.

It has a neat feature that allows you to compare two sizes of tires for comparison. I compared the Ryker front tire size 145/60R/16 and the Yokohama 175/50R/16. The diameter is very nearly exact, but the rub is the Yokohama is 1.2 inches wider. It may fit, perhaps Ron or someone else can take a ruler out to their Ryker and check it out for us.
After looking at the front tire clearance on my Rally I would say there is not enough clearance to use 1/2” wider tires on each side to clear the front fender. The fender and tire side are very close to being even. Another 1/2” wider tire would IMO extend past the fenders edge. Now I realize just about anything can be made to work but, I will stay with OEM front tires until something better comes along. ;) cueman

[BLUEKNIGHT911]

After looking at the front tire clearance on my Rally I would say there is not enough clearance to use 1/2” wider tires on each side to clear the front fender. The fender and tire side are very close to being even. Another 1/2” wider tire would IMO extend past the fenders edge. Now I realize just about anything can be made to work but, I will stay with OEM front tires until something better comes along. ;) cueman

… I'm willing to dance with the Devil :gaah: …. I have used 185/55 -15 inch tires on my 2014 RT …. I spaced out the Brackets with washers and put washers on the hubs.... 24,000 + miles with no issues ….. but that's me ...:roflblack:...…. Mike :thumbup:

[IdahoMtnSpyder]

I'm of the mind that this discussion could be characterized as premature. Who knows, maybe the Ryker tires, particularly the front ones, will give decent mileage with good rolling characteristics and be quite satisfactory, even if overpriced. I will admit that Kenda's track record doesn't bode well for that thought, but there's always hope! :2thumbs: :2thumbs:

[BLUEKNIGHT911]

I'm of the mind that this discussion could be characterized as premature. Who knows, maybe the Ryker tires, particularly the front ones, will give decent mileage with good rolling characteristics and be quite satisfactory, even if overpriced. I will admit that Kenda's track record doesn't bode well for that thought, but there's always hope! :2thumbs: :2thumbs:

:agree:...….. I've never liked the Kenda's for many reasons …. However for the front tires ( only the front ) if you have really good alignment they will give decent service and good mileage …. However their track record for mediocrity and marginal construction makes them a poor REPEAT purchase ...unless you can't use Auto tires …...jmho …. Mike :thumbup:

[farmer54]

After reading this post I did some looking up of car tires and found Continental 125-70-16, they are the same dia. same sidewall size but .80 in. narrower, not perfect but I think they would do if you aren't happy with Kenda tires. Also I think about $110 shipped to you from Tire Rack. Farmer 54

[watertowerman]

I looked at the front fenders on my Rally and there are 3 bolts, I was planning on lifting the fenders for gravel clearance. 6 - 1 Inch center hole to hole flat bar steel or alum lifts should lift them.

[Leland]

After reading this post I did some looking up of car tires and found Continental 125-70-16, they are the same dia. same sidewall size but .80 in. narrower, not perfect but I think they would do if you aren't happy with Kenda tires. Also I think about $110 shipped to you from Tire Rack. Farmer 54

@Farmer64

I looked up the Continental 125-70-16 on Tire Rack and only found one tire (below).

https://tires.tirerack.com/search?p=Q&lbc=tirerack&uid=840776059&ts=custom&w=125-70-16&isort=score&method=and&view=list&af=brand:continental

This is a Spare Tire Only, these are usually speed limited to 50 mph max. and very short travel distances This would be unsafe for use on the Ryker.

If there is another at 125-70-16 at Tire Rack that is not rated (Spare) in this size would you please post a link for us?

I could find no other tires in this size that was not a spare rated service on the internet either.

[Leland]

The use of wider tires on the Ryker maybe our only choice in the future. If this is the case then maybe it would be prudent to consider the possibility that installing wider tires on the front of the Ryker may create problems. We have been able to use a fairly large variety of tires on the Spyders because we have power steering to handle the feedback from the road.

After watching many Blogs or Vlog videos of the Ryker I have become aware that at certain times strong oscillating feedback is feed from the front tires backward through the steering system into the riders arms. I've only seen this happen when the rider is turning sharply out of small radius turn while accelerating hard. Which appears to be the "Most Fun" of the maneuvers for this bike. The oscillations appear to dampen quickly, but they seem to catch the rider by surprise. I'm sure it would easy to adapt to this behavior.

My concern is, will this feedback into the handlebars be increased when wider tires are installed on the Ryker. Will it cause the bike to wander "to and fro" across the lane?

I notice on Youtube today that the owner of the Ryker in Texas with the low-oil gearbox problems was complaining that his Ryker with only 25 miles wander back and forth and the tail wagged along causing him some concern. He said the tail wage started at 50 mph. He talked about having the dealer check the alignment. He felt his Ryker may have been damaged in shipping, it is difficult to know if it was transit damage or a factory alignment that was not performed correctly. But Rykers may also be sensitive to alignment like the Spyder. How to properly align a Ryker is also a question to address.

To correctly align a Ryker it will need to connected to a BRP BUDS computer system found only at BRP dealerships and a few independent shops. The Ryker has a steering position sensor onboard that must be precisely center to start the alignment process, similar to a Spyder. This disables the ability of owners to perform a "DIY" alignments, thus increasing the operational/ownership cost of the Ryker. (EDIT: look below for an update on this paragraph)

To summarize:

Will wider front tires on the Ryker alter the handling, will it increase road feedback into the handlebars since power steering is not available to absorb the energy?

Is the Ryker sensitive to front end alignment, especially since it does not have power steering?

How will wider tires affect the possibility of "wander" by an "partial out of alignment" Ryker?

How is a Ryker correctly aligned? Is the use of a Laser alignment required? Is a BUDS connection mandatory?

These things are all interrelated.

Update: January 24, 2019 I can not find a steering position sensor on the IPC that is posted at this location on Facebook.
https://www.facebook.com/media/set/?set=a.357893974764802&type=3

Shawn Smoak pointed out in one of his Vlog on the Ryker the location of the steering position sensor. It was visible in the video, but I cannot find it on the IPD. I do not know if a BUDS connection is required to do an alignment on a Ryker at this date.

[farmer54]

Leland you are right I didn't look up the speed spec until afterward and then I saw it said it was a doughtnut. I'm sorry for the mistake. farmer54

[farmer54]

Hey guys I got to looking at mc tires on BikeBandit and found some 120-70-16 size tires. These are close to same size except 1" narrower and are rated "S" speed, I used the Shinko SR567 for size comparison. Frank farmer 54

[IdahoMtnSpyder]

Hey guys I got to looking at mc tires on BikeBandit and found some 120-70-16 size tires. These are close to same size except 1" narrower and are rated "S" speed, I used the Shinko SR567 for size comparison. Frank farmer 54
Motorcycle tires don't have the correct bead design for the Spyder wheels. OEM Spyder tires are a hybrid. They're designated and sold as Special Motorcylce Use Only but the tire design is essentially the same as automobile tires and uses automobile bead design for the tire and wheel. That design is significantly different from the motorcycle tire bead design. Guys can and do use car tires on two wheel motorcycles but the fit of the bead is not perfect. I don't think anyone has, or is really willing, to use a m/c tire on a car wheel because of the bead differences.

[farmer54]

Thanks for the heads up as I see it has a "mc" rating and I thought it meant it was a cycle tire after going back threw I see it has a special rim, so I guess I,ll buy from BRP when needed. Frank

[Triumphcycleman]

here's my 2 cents on the tires. First, BRP claims 40% better wear than the Spyders. I am guessing that is due to the lightness of the Ryker. Second, I would be very, very concerned about putting car tires on a Ryker. Car tires are expected to bear approx 1,000 lbs of downforce per tire. The compound and stiffness are designed for it. On a Spyder RT, weighing 1200 lbs wet, with 400 lbs of rider/passenger and gear, you have 1600 lbs divided by 3 wheels = 534 lbs of force. That is why car tires last a long time on an rt, but also why they will never stop as quickly with car tires on it. Now look at a Ryker. At 630 lbs wet, add a single 250lb rider, and you have 880 lbs divided by 3 = 293 lbs of horizontal downforce on the tire. So you have a tire designed and rated for 1,000 lbs of down force getting only 1/3rd. It likely won't stop, and it might not turn. Bad idea, when you are saving $40 but you end up in the other lane or underneath the car stopped in front of you. What did you save?
One other comment. The lateral force on a tire is directly related to the tires durometer measured compound, contact patch area, and horizontal down force. All I see from a wider, harder compound front tire is increased steering effort from a larger frictional contact patch (rotational lateral force) but even less horizontal force as the tires weight will be further diluted by the larger contact patch. It is a lose - lose deal. The bike will be harder to steer, and it will slide quicker! The car tire idea is a terrible idea for a Ryker in my opinion.

[Leland]

here's my 2 cents on the tires. First, BRP claims 40% better wear than the Spyders. I am guessing that is due to the lightness of the Ryker. Second, I would be very, very concerned about putting car tires on a Ryker. Car tires are expected to bear approx 1,000 lbs of downforce per tire. The compound and stiffness are designed for it. On a Spyder RT, weighing 1200 lbs wet, with 400 lbs of rider/passenger and gear, you have 1600 lbs divided by 3 wheels = 534 lbs of force. That is why car tires last a long time on an rt, but also why they will never stop as quickly with car tires on it. Now look at a Ryker. At 630 lbs wet, add a single 250lb rider, and you have 880 lbs divided by 3 = 293 lbs of horizontal downforce on the tire. So you have a tire designed and rated for 1,000 lbs of down force getting only 1/3rd. It likely won't stop, and it might not turn. Bad idea, when you are saving $40 but you end up in the other lane or underneath the car stopped in front of you. What did you save?
One other comment. The lateral force on a tire is directly related to the tires durometer measured compound, contact patch area, and horizontal down force. All I see from a wider, harder compound front tire is increased steering effort from a larger frictional contact patch (rotational lateral force) but even less horizontal force as the tires weight will be further diluted by the larger contact patch. It is a lose - lose deal. The bike will be harder to steer, and it will slide quicker! The car tire idea is a terrible idea for a Ryker in my opinion.

@Triumphcycleman,

With all due respect, I understand your point of view. This is not about saving money, in fact quality auto tires cost more than Kenda tires. Many Spyder riders, including myself replaced our Kendas when they worn out with auto tires for several reasons. Kenda tires are very sensitive to front end alignment. Kenda tires wear very poorly if the alignments is not perfect, so BRP's claim for such long service from Kenda tires will only be true if the alignment is perfect. Kenda tire are not great on wet roads. Kenda tires wear out down the center of the tire tread on the rear tire regardless of the operating tire pressure. Kenda tires do not in general handle well. Do a search for "Tires" on this Spyder forum and look at the hundreds of threads, you will not find many Spyder owners bragging about how great Kenda tires handle, some Spyder owner have fair luck with long tire tread life, but that is the minority of the respondents.

In general Kenda tire are not built to high standards. They represent a good revenue flow for BRP. It appear BRP has every intention of retaining Ryker owner tire purchases with BRP. If you choose to use Kenda tires that is wonderful and I'm sure you will have many followers, but for myself and many other Spyder owners that have a working background with Kenda tires it is very frustrating to learn the "No option other than Kendas." We have experience what quality tires can do for the Spyder.

Tire selection for the Ryker is an unknown, especially since the Ryder does not have power-steering. The power-steering is poorly understood by most BRP riders. It's main function is to isolate feedback into the riders arms. The "power" level of assist is regulated by the CPU that is watching the rate gyros, wheel speed sensors, and input torque on the steering handlebars. The power-steering varies it control of feedback to the rider arms based upon the PID, (proportion, integral, derivative) computations. If a Spyder is not in alignment and the tires are of poor quality (Kenda) then the handling is terrible! If new tires are installed but the alignment is still out the Spyder will feel much better, but not right until it is correctly aligned. I proved this to myself on my F3T. Tires make a huge difference on safety and handling for the Spyder. I suspect it would be more, if not the same for a Ryder since it does not have the power-steering to dampen the road feedback into the riders arms.

I'm sure you'll have a fine time with your new Ryker using Kendas, you have no other choice at this time.

Have fun with your new toy.

EDIT; @Triumphcycleman. On your first post to Spyder Riders you introduced yourself and said that you are now a "BRP Spyder dealer". I guess you will profit from the exclusivity of "Kenda's tires only on the Ryker". Does this explain your comment? I quote you here: "The car tire idea is a terrible idea for a Ryker in my opinion"

[Highwayman2013]

Well let’s hope something better than a Kenda comes along.

[BLUEKNIGHT911]

Hey guys I got to looking at mc tires on BikeBandit and found some 120-70-16 size tires. These are close to same size except 1" narrower and are rated "S" speed, I used the Shinko SR567 for size comparison. Frank farmer 54

:agree: with I M S ….. A 16inch tire can be found …. but the one you found is a real Mtc. tire and the TREAD shape is ROUND …. also the tire BEAD is for a MTc. rim :banghead::banghead:...……..they simply won't work ……………………… Mike :thumbup:

[chris56]

168906

I use my Spyder (Ryker?) here in the Alps - possible for rain on each tour - the Kenda had no "Grip" specially when the roads are wet, so I changed to a good european standard tire - if I would take a ryker now, I hope my dealer keeps the new Kenda and install a Pirelli or so - in the moment only for the rear wheel if we cannot find one for the front..
the front wheels of my RT where not balanced when I got it - so I had to visit a tire-shop on my first tour (in Italy) ..
on the other side I always had to visit my BRP Dealer to adjust my drive-belt after the tire-shop insatalled a new rear tire
one of my Spyder-stories ;)

[Triumphcycleman]

Leland, for your information, we actually make $8 MORE per wheel when mounting a customer supplied tire so...... there goes that theory. If you want to attack me personally for being a dealer, which I have never hid, then so be it. I can handle it.
My point, after a decade of selling and servicing Spyders is that car tires may work a little bit better on a model like an RT riding two up than this really, really light and minimal Ryker. I too wish we had choices beyond Kenda, but right now we do not.

[chris56]

Leland, for your information, we actually make $8 MORE per wheel when mounting a customer supplied tire so...... there goes that theory. If you want to attack me personally for being a dealer, which I have never hid, then so be it. I can handle it.
My point, after a decade of selling and servicing Spyders is that car tires may work a little bit better on a model like an RT riding two up than this really, really light and minimal Ryker. I too wish we had choices beyond Kenda, but right now we do not.

I prefer that my BRP-dealer installs for me the new tires !! (if he can balance the wheels after that) - but it would be really
intresting to make a Panic-brake test with Kendas against Pirellis or so !!

https://www.whichcar.com.au/features/wheels-tyre-test-2015-nine-brands-compared

[gskinner]

Like I said, I do not know anything about Spyders or Kenda tires. Just thought that no one has posted yet with some actual first hand experience and mileage on a Ryker to know how the tires perform. Maybe they got it right and they work great on the Ryker. Of course they could be just as bad as everyone agrees they are on the Spyder. Waiting to hear some first hand reports.

[IdahoMtnSpyder]

Like I said, I do not know anything about Spyders or Kenda tires. Just thought that no one has posted yet with some actual first hand experience and mileage on a Ryker to know how the tires perform. Maybe they got it right and they work great on the Ryker. Of course they could be just as bad as everyone agrees they are on the Spyder. Waiting to hear some first hand reports.
:agree: with regard to the front tires as I posted earlier. There is always hope, but the BRP/Kenda track record doesn't encourage such hope! :dontknow:

[Leland]

@gskinner

I'm seeing a few reports on Facebook about Rykers dancing around at highway speeds. Discussions regarding possible alignments issues with Ryker are becoming more common. Today Lamont posted photos on the RykerLovers Facebook page showing a Ryker that was out of alignment from the factory. Many of us received our Spydes out of alignment when purchased new. This seems to standard practice for BRP. The upshot of all of this will be increased tire wear.

Kenda is not going to put some sort of magical fairy dust into the mix for Rykers. Kendas are made in a 3 world country very cheaply. BRP built the Ryker with cost savings as the primary object, it has to be cheap thus you will not see anything other that Kendas for sale from BRP. Kenda tires are built specially for their bikes. These tires are built to work with automotive wheels, not motorcycles wheel, but they have Kenda mold MC into the side wall to convince you they are for motorcycles. They are very light duty and have terrible wet weather performance. As you have read on this thread they represent a hazard in some Spyder rider minds.

Okay, now let us give up on the wishful thinking postings and go find a tire that will fit the Ryker front wheels...... Starting looking

[IdahoMtnSpyder]

Kenda tires are built specially for their bikes. These tires are built to work with automotive wheels, not motorcycles wheel, but they have Kenda mold MC into the side wall to convince you they are for motorcycles.
It's not to convince anyone. It's the law. NHTSA regulations require tire manufacturers to mark on the sidewall the application of the tire if it is not intended for automotive use. And we all agree the BRP/Kendas are not intended to be used on cars. The marking actually is "For Special Motorcycle Use Only". That's to make clear they are not intended for general motorcycle use.

[Peter Aawen]

For the fronts, it looks like Yokohama do an S-Drive in 175/50R16 77T SL that's almost identical in size in all respects except the width, but I haven't been able to get the ACTUAL physical dimensions of the OE Kendas to confirm any physical size differences yet.... and I believe Kumho do an Ecsta SPT KU31 in 165R45/16 74V which is a 'similar in all but width' size too. Both of those are basically Dry Weather Perfomance tires, altho both manufacturers claim that their particular tires have "superb wet weather performance, grip, and hydroplaning resistance".... Yeah, riiight! :rolleyes: And without trying very hard I found a whole heap of alternatives for the 205R45/16 or the 205R55/15 rear tires in just about any spec or tread type you might want; 48 popped up on the very first search I tried!! So I don't think it'll be too hard to find a replacement tire for the rear! :clap:

So it seems that there are some 'reasonably close in rolling dia but wider' alternative front tires out there; tires that look like they should fit under the std fenders without much effort/modification, but we really need those people with Rykers to get out there & start putting miles on the OEM Kendas to see if BRP's claim of improved tire life & exceptional ride & handling is anything more than marketting hype! Yeah riiight! :rolleyes: And I really want to get hold of a couple of these 'new' Kendas to dissect them & see how they are REALLY made.... I suspect that they aren't 'real' motorcycle M/C tires, but just like the Kendas fitted by BRP to our Spyders, they are basically just poorly made lightweight versions of automotive Passenger 'P' tires, the proof will be in the dissection! However, right now we don't have too many Rykers on the ground here in Aus, so it might be a little while before I can convince someone to donate their Kendas to the cause!! :opps:

That means it's up to you lot over there - get out there & start racking up the miles on those Rykers! You can't let a little snow or cold weather stop you, that's irrelevent & unimportant in the burning drive to answer these important questions for the edification of all Spyder/Ryker Lovers! Just get on your trikes & ryde, you hear me?! :mad: I'd do it myself but no Aussie Rykers have been delivered yet, aand besides, it's over 40° C here again today, so it's just too hot for me to ryde... :cheers:

[chris56]

it seems that we have to look on the japanes Market .. they have a lot of smaller cars ;)
- found this here for the rear (Price would be Ok)

https://store.shopping.yahoo.co.jp/garage1-shop/kr20a-2055516.html#

168947

[jcoats1]

Does that say 4.4 psi for max pressure?

[Michaelscs]

We don't yet know anything about these particular Kendas on the new Ryker. These tires are different than the ones on the Spyders (same brand - different models), and the Ryker weighs 300 - 400lbs. less than the RT's & F3's. The handling and wear of these new Kendas on the new Ryker could be completely different than our Spyders! Maybe BRP & Kenda got it right this time.

[Peter Aawen]

C'mon guys, if you have a problem with a post or poster, don't start a posting war, just report the post & let the mods handle it!

[IdahoMtnSpyder]

Does that say 4.4 psi for max pressure?
No it wouldn't. I don't see it on the pics of the tires but if that's the number on the tire it's probably 4.4 kpa (kilopascal, metric) which is about 90 psi. It might actually be 1.4 kpa but that seems low.

[Tslepebull]

My tires still have whiskers (****) on them. I hope options develop before I have to buy new tires.

[jiffy]

You can make an extension for your regulator torque wrench. and use an extension calculator. https://belknaptools.com/extensions-calculator/

[Leland]

169043

[IdahoMtnSpyder]

169043
More like opinion since there's no accompanying evidence to lend credence.

[QuasiMotard]

More like opinion since there's no accompanying evidence to lend credence.

Sniff, sniff... I smell burning rubber and see black patches in the distance. Looks like it's tire testing time! Testing methodologies and empirical evidence to tell the tale. How to set up the test is the next hurdle.

Since the Ryker has only one "official" tire, we would need another vehicle with a similar tire size (combined contact patch area), track width, weight, and weight bias... for the minimums. Since the Ryker has no peers, and no alternate/official/approved front tire selection choices (yet), the first variable is the trickiest one to eliminate. If we attempt to use an alternative vehicle with similar metrics, then tire manufacturers, different tread patterns, rubber composition, etc... could be compared against the Kenda's on the Ryker. However, the control vehicle wouldn't be the same, which invalidates the test results.

Maybe we just need to wait for some brave new Ryker owners to mod their front fender assemblies to provide more clearance for alternative tire trials. They will be the brave NASA "X-" class pilots. Good luck and Godspeed to you brave souls... we're behind you all the way!

--
QM

[jbraman]

was thinking of having custom fenders done up for ryker. then i'd be able to change to a better quality tire with no issues...i hope.

[Aufgeblassen47]

The rear tire size 205/45R/16 is not going to be a problem as automotive tires are available. This fact is heart warming since the rear tire is going to go away as smoke quit soon for some riders.



MAYBE if you ride like a pimply faced teenager! roflmao

[McRuss]

:bdh:

[Freezefm]

Well, I can say the Ryker is just as touchy with the alignment as the Spyders. I had the dealership perform an alignment at ~830 miles. Here's my front tires after 2900 miles...

171739 Right 171740 Left

Francis

[BLUEKNIGHT911]

Hey guys I got to looking at mc tires on BikeBandit and found some 120-70-16 size tires. These are close to same size except 1" narrower and are rated "S" speed, I used the Shinko SR567 for size comparison. Frank farmer 54

:hun: ………. Did you actually look at that specific tire ….. The tread is ROUND not Flat like a Ryker's …. The Shinko is for TWO wheel Mtc's …. The traction will be marginal on a Ryker …… Mike :ohyea:

[BLUEKNIGHT911]

More like opinion since there's no accompanying evidence to lend credence.

Evidence, I and others here have used that specific tire ….. and IMHO had the best traction of any tire I have tried ….. I'd use that tire in a heartbeat ….. Mike :ohyea:

[BLUEKNIGHT911]

it seems that we have to look on the japanes Market .. they have a lot of smaller cars ;)
- found this here for the rear (Price would be Ok)

https://store.shopping.yahoo.co.jp/garage1-shop/kr20a-2055516.html#

168947

Kenda has the worst record for QUALITY that I have ever seen..... From their own specs they are of marginal strength ….. Mike :ohyea:

[BajaRon]

Not trying to resurrect a dead horse here. But the Ryker front tire situation has, if anything, gotten worse. The S-Drive tire (175/50R 16) that I was considering has been discontinued. And being over 1" wider than the 145/60R 16 Kenda, it isn't going to fit under the front fender anyway. Spacing out the fender like I did with my Spyder isn't an option because the clearance is the same on both sides.

There really isn't anything else out there that comes close enough for me. A 135/70R 16 will go. But the narrower width and taller sidewall are not good combinations. Overall, it's a frustrating process. If the Kenda's I have were decent, then I'd be fine. But they rattled my eyeballs out of the crate and after several attempts to get them balanced, they still shake an aggravating amount. Even though they are brand new, I know my only real solution is replacement.

[Highwayman2013]

I hope a good replacement is found. I’m thinking about getting a Rally.

[KC61]

I hope a good replacement is found. I’m thinking about getting a Rally.

Well, the stock tires will last a good long time and the wheel's aren't falling off my Rally so I would say you are clear to buy one if you can find one.

[Highwayman2013]

Not a Kenda fan.

[Zoot]

You know, it's not just a Ryker thing. Car tires have gotten much larger in the last years. Some of my friends own older cars, sports cars, for which the OEM tire sizes are no longer available. They are having to go up in size and play with the aspect ratio to try and maintain the diameter.

[Markubis]

Maybe we can hope the aftermarket will come out with a wide fender replacement to allow a better range of tires up front.

[Stephenj37826]

I was looking at the stock fender. If you slot the bolt holes holding them on it may be possible to raise the fender allowing a wider tire to clear.

[BajaRon]

Maybe we can hope the aftermarket will come out with a wide fender replacement to allow a better range of tires up front.

I'd prefer the aftermarket community develop a good quality tire. I'm sorry, but the Kenda's are JUNK!.

There is already plenty of rubber on the ground with the current tire size. More rubber isn't going to increase traction. But it will increase drag.

[Highwayman2013]

It looks like the fenders can be spaced back so maybe a 175/50/16 will fit.