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Best size rear tire
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Highwayman2013
New member
215/60r15 puts it within 1 mph of the gps.
h0gr1der
New member
I can't speak directly to the F3 as I ride a 2018 RTL. Mine had a 2-3 MPH error at 70 MPH with the OEM Kenda. I replaced it with a Vredstein 205/60R15 car tire, and it took about 50% of the error out. I now run about 1 MPH difference. I've heard the 215/60R15 is pretty much the ticket, but have not verified this personally.
troop
Well-known member
I do when riding in the residential areas with school zones, etc. Nothing wrong with having an accurate speedometer. Fortunately, most OEM speedo's read a touch optimistically.
IdahoMtnSpyder
Active member
Because when I'm riding and trying to stay at about 4 mph over the posted limit, I want to know if I can or cannot go faster without risking a ticket! 5 mph over the posted is the real implied speed limit since LEOs won't ordinarily stop you until you're 6 or more over! :2thumbs:
The reality is that EVERY SPYDER/RYKER's SPEEDO ERROR IS LIKELY TO BE DIFFERENT!! Close possibly, but they'll all be different to some degree! The ONLY thing that you can be certain of is that by International Agreement & National Legislation, when any Spyder/Ryker leaves the factory on OE Spec tires running at their recommended pressure, the speedo will most likely read somewhat faster than that machines true speed! How much faster any one machine is at any given moment, who knows?!
And then we get into how accurate is the device/s you're using to check your speedo against?! Is it a true GPS with extremely accurate positional & velocity measurement features derived from multiple satellite signals and a number of ground based signals, all of which are polled numerous times per second to get an extremely accurate result; or is it just one of those dash-top 'street directory' so called GPS jobbies that are only accurate to within 10 or so metres if & when they are at their very best and able to read the sat signals every 3 times a second or so? Or maybe it's just your telephone GPS app that's accurate to within about 100m unless it's augmented by multiple ground based signals to get it down to that 10m or so give or take a few? Or is it mathematically derived from a precise timing device used to measure precisely how long your machine took to travel a specified and accurately measured distance?? :dontknow:
Then there's the fact that very few tires are EXACTLY the true size printed on their sidewalls - not only can there can be significant variations in the tires actual dimensions between manufacturers, brands, and even tread pattern, but there's also the differences in rolling diameter & circumference (smaller differences, maybe, but not necessarily!) due to differences in the tire's core temperature; the ambient temperature; the exact pressure that tire vs any other tire is being run at; the accuracy of the particular tire pressure gauge used to set a given tires pressure; and a whole heap more variables too!! Even any difference or change in barometric pressure at any particular time for a specific tire might mean it varies the speedo accuracy of that particular machine at that time vs any other by as much as a few miles per hour!!
So, given all that, while any &/or all of the tire size recommendations above & their speedo corrections may have worked as indicated at the time of testing and for the specific given values of that whole raft of variables at that moment, they don't necessarily make for EXACTLY the same correction now or at any other time/on any other machine/in any other circumstances/situation or with a different set of given variable values!! :yikes:
All of which means THERE IS NO SUCH THING AS 'THE BEST TIRE' TO CORRECT ALL SPYDER/RYKER SPEEDO ERRORS!! What works BEST for YOU is a matter of personal choice and your tolerance for how much or how little any of those inumerable variables may change YOUR speedo's accuracy at any given moment! :lecturef_smilie:
Most auto tire's (but not necessarily ALL auto tires) sized between 205/65R15 and 225/55R15 will see some improvement in your Spyder/Ryker's speedo accuracy, but even that depends upon how far out it was to start with!! I personally chose to go a little bigger (to a 225/60R15) because we do lots of long & hot miles here in Aust & while the slightly larger tire makes the speedo very close to correct/accurate at my usual running pressures/operating temps/barometric pressure etc etc etc, more than anything else that size tends to wear a little better/longer FOR MY RIDING STYLE AND NEEDS/WANTS, but YMMV!
Pick a tire, any tire, within that size range..... the specific 'speedo accuracy correction' of any one tire over any other given tire is pretty much the MOST unpredictable & least reliable way of picking any tire.... and there is NO single 'best' tire to do that - but there might be a 'best for you'!! :thumbup: Me, I'd be looking at all the other features & potential improvements to aid my choice of tire! :clap:
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Do you know what you want from the new tire? :dontknow: (Besides a more accurate speedo that is?? All auto tires in the size range will do that to some degree! :thumbup: )
Do you think Wet road traction & hydro-plane resistance is critical? Or are you more of a Dry road only ryder? What about tire life & tread wear, how important is that to you? Are you a local tourer or a speed demon who does a few track days a year? Or maybe you're a long distance tourer who only does 3 or 4 big trips each year & only rides to the corner shop all the rest of the time?
Give us something to go on and I'm sure we can help - it's just that going for improved speedo accuracy doesn't really narrow it down too much & as you now know, there's no one tire that's 'best' at giving you the most accurate speedo, so we need more to work with! :thumbup:
Do you think Wet road traction & hydro-plane resistance is critical? Or are you more of a Dry road only ryder? What about tire life & tread wear, how important is that to you? Are you a local tourer or a speed demon who does a few track days a year? Or maybe you're a long distance tourer who only does 3 or 4 big trips each year & only rides to the corner shop all the rest of the time?
Give us something to go on and I'm sure we can help - it's just that going for improved speedo accuracy doesn't really narrow it down too much & as you now know, there's no one tire that's 'best' at giving you the most accurate speedo, so we need more to work with! :thumbup:
BLUEKNIGHT911
Sadly Passed Oct 2024 - RIP
:agree: and Peter is a tire Guru ...... everything He said is in the Vredestein Quatrac 5 tire ... it's not the least expensive, but currently it has the best all-around rating of anything that will fit our Spyders ..... 17-18 psi for the rear .....15-16 for the front ...... good luck .... Mike
hyea:
Mikey
Well-known member
:agree: and Peter is a tire Guru ...... everything He said is in the Vredestein Quatrac 5 tire ... it's not the least expensive, but currently it has the best all-around rating of anything that will fit our Spyders ..... 17-18 psi for the rear .....15-16 for the front ...... good luck .... Mike
Hay!! Your no rooky ether!
hyea:
Highwayman2013
New member
I'll be more specific. I use the General Altimax RT43 in the 215/60R15 size on a 2016 F3Limited at 22psi.
Speed checked against a TomTom Rider GPS and a Garmin Zumo GPS.
Speed checked against a TomTom Rider GPS and a Garmin Zumo GPS.
This will be my last riding season on my Michelin Hydroedge which will have 30,000 plus miles on it...I would like to hear some reports from riders that are using the 215/60/R15 Cooper and Hankook rear tires...Like wet road handling??? All around traction??? Mileage wear??? Exact model of tire??? Or anything else positive or negative...Thank you, larryd
troop
Well-known member
I just put on a Cooper CS5 Ultra touring last week. I got it for $53 before a price increase. Only have 60 miles on it, as the weather here in WI isn't too favorable yet. Initial impressions are a very smooth ride. Time will tell...
https://www.amazon.com/gp/product/B00MXNDGSU/ref=ppx_yo_dt_b_asin_title_o09_s00?ie=UTF8&psc=1
IdahoMtnSpyder
Active member
I installed a Cooper CS5 Grand Touring about 2 years and 7000 miles ago. So far I've been quite pleased with. Still looks almost new as far as tread wear. Traction has always seemed very good except the other day. I was on some wet, but not standing water, asphalt making a right turn at a stop sign. I gunned it and the tire broke loose but regained traction instantly when I (or Nanny?) rolled back the throttle. I don't think I've ever had it break loose going straight forward. I believe the width of the tread and the lightness of the rear end are going to make it fairly easy for any tire to break loose on wet pavement while accelerating in a sharp turn.
This Cooper breaks loose often on my smooth garage floor when I'm trying to get the Spyder up on a ramp. All sorts of black streaks have been laid down.
I had a Michelin Hydroedge before the Cooper. It broke loose on wet concrete pavement going straight ahead from a traffic light.
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