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Active Member
New front tires - Potenza
Just put new front tires on my 2011 RT-S. After much research I decided to go with Bridgestone Potenza. I kept the size the same as the OEM. Wow, such an improvement. I have always had "alignment" issues, even after being lasered twice. This finally appears be corrected. I will fool around with the tire pressure, but I'm starting at 25 PSI. That has made the ride pretty stiff, but I'm finding that I like it. If you have the same tires, please let me know what works for you.
I bought them at TireBuyer.com, and they showed up on my door step 36 hours after I placed the order. Impressive.
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Very Active Member
25 seems extremely high for the same size tire.
2011 fronts are suppose to be at 15 psi. I run 19 and that's over the spec.
Some reason your running them that high? That tire design needs it or something?
Bob
2011 RT-S SM5 - Black
Bought June 2013 with 450 miles. 27K on 8-1-2017.
Farkles - DIY Trunk Break Light, HMT Break Light, DIY Mirror Turn Signal Lights, DIY Bluetooth Dongle, DIY iPod Setup, DIY Alarm System Install, Show Chrome front fender / rear saddle bag lights, 4th break light around the trunk, Vented Windshield, Baja Ron Sway Bar, DIY GPS setup, Smooth Spyder, BRP Chrome Mirrors, Adjustable deflectors, Triaxis handlebars, NVB Pegs, Bad Boy Airhorn... More to come
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Active Member
Originally Posted by finless
25 seems extremely high for the same size tire.
2011 fronts are suppose to be at 15 psi. I run 19 and that's over the spec.
Some reason your running them that high? That tire design needs it or something?
Bob
Yes, 2011's run at 15 psi when they have OEM Kendas that are rated for 15 psi. The Potenzas are rated for 44 psi max, but since they were designed for vehicles heavier than a Spyder its hard to say just where that psi should be. I can't say what that number is, but I'll play with it and try to find the sweet spot. When I started at 25 psi I figured that it was probably high, and it probably is, and I'll go down from there.
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Active Member
Does not the lower tire pressure result in a faster wire like in a vehicle?
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Ozzie Ozzie Ozzie
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Very Active Member
Originally Posted by C3517C
Just put new front tires on my 2011 RT-S. After much research I decided to go with Bridgestone Potenza. I kept the size the same as the OEM. Wow, such an improvement. I have always had "alignment" issues, even after being lasered twice. This finally appears be corrected. I will fool around with the tire pressure, but I'm starting at 25 PSI. That has made the ride pretty stiff, but I'm finding that I like it. If you have the same tires, please let me know what works for you.
I bought them at TireBuyer.com, and they showed up on my door step 36 hours after I placed the order. Impressive.
I have Potenzas on the Spyder aired up to 17 psi for the past 8,000 miles or so and I think that is plenty given the weight of the machine.I would think that 25psi is excessive.
Penny and Rick have owned many motorcycles starting in 1974 with Hondas, then to Suzukis, Gold Wings and ultimately Spyders.
74 Honda 360T (pair); 78 Suzuki GS 1000 (pair); 82 Honda Aspencade; 84 Honda 400; 87 Yamaha 1100; 99 Honda Valkyrie; 01 Suzuki Burgman(triked); 02 Honda GL 1800(triked); 10 Spyder RTSE; 11 Spyder RTSM; 12 Spyder RTSL (pair); 20 Spyder RTL (current)
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Pragmatic Member
I'm just curious, not forming or stating an opinion ..... being that the recommended PSI on the OEM front tires is 20, wouldn't you use the same 20 PSI for the Potenza?
Pam
- 2015 RT-S Special Series / Red & Black
- Baja Ron Sway Bar
- Utopia Backrest
- F4 Customs tall and wide vented windshield
- Stebel Super Loud Air Horn
- Baker Built Air Wings
- LaMonster Highway Pegs
- SpyderPops Exhaust Block Off Plate
- SpyderPops KOTT Grill
- SpyderPops Belt Guard
- Cat Bypass
- Laser Alignment by Squared Away
- TricLED Fender Lights
- General Altimax RT43 rear tire
- Dual flag holder
- Mud Flap
- A$$hole seeking missile system
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Ozzie Ozzie Ozzie
The potenzas have stiffer sidewalls & harder tread compound than the OE tires, so they'll need a tad LESS pressure in them in order to let the tire flex enough to get up to its optimum operating temperature - run them at the same pressure as a soft walled soft compound Kenda & it'll be like riding on a steel rimmed cart - no grip on the road & no sidewall cushion effect to soak up some of the bumps
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Originally Posted by Pampurrs
I'm just curious, not forming or stating an opinion ..... being that the recommended PSI on the OEM front tires is 20, wouldn't you use the same 20 PSI for the Potenza?
Pam
He has a 2011 with 14" rims not 15" like your Spyder. The recommended pressure on the 11 is 15
2017 F3T-SM6 Squared Away Mirror Wedgies & Alignment
2014 RTS-SM6 123,600 miles Sold 11/2017
2014 RTL-SE6 8,600 miles
2011 RTS-SM5 5,000 miles
2013 RTS-SM5 burned up with 13,200 miles in 13 weeks
2010 RTS-SM5 59,148 miles
2010 RT- 622
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Pragmatic Member
Originally Posted by SpyderAnn01
He has a 2011 with 14" rims not 15" like your Spyder. The recommended pressure on the 11 is 15
OK, I will modify my question to refer to whatever PSI is recommended by the OEM
Pam
- 2015 RT-S Special Series / Red & Black
- Baja Ron Sway Bar
- Utopia Backrest
- F4 Customs tall and wide vented windshield
- Stebel Super Loud Air Horn
- Baker Built Air Wings
- LaMonster Highway Pegs
- SpyderPops Exhaust Block Off Plate
- SpyderPops KOTT Grill
- SpyderPops Belt Guard
- Cat Bypass
- Laser Alignment by Squared Away
- TricLED Fender Lights
- General Altimax RT43 rear tire
- Dual flag holder
- Mud Flap
- A$$hole seeking missile system
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Active Member
Magic Number for Tire Pressure
Many years ago, I read an article that discussed the "correct" tire pressure for multiple vehicles, but concentrated on motorcycles. Here is the formula they presented, and I have followed it on all my vehicles - cars, trailer, suv, van, bikes. It seems to work just right on all of them.
Tire pressure is measured cold. After the tire warms up, the pressure should not increase more than 10%. If you start at 30 psi, then it should not go above 33 at full temp. If the pressure is too high, start with a lower pressure. If it does not go up 10%, add a little to the starting pressure.
On my RT-S, this translates to about 17.5 - 18.0 on the fronts, and 28 in the back. The number seems not to be significantly affected by the weight on the bike (one-up or two-up), or the outside temperature. In the high heat of the summer, it goes a bit higher than 10%, but not so high that I have to change the starting psi.
Just my two cents, but it seems to work for me.
Ryde Safe.
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Active Member
Thanks for this information. My fronts will be ready soon. I have a 2012 RT Limited, and ordered my 2nd Kuhmo for the rear today. My OEMs got 8500 miles each, and I switched to Kuhmo which has been a great tire. It has 10,000 miles on it now , and has not quite hit the wear marks yet, so I expect another 3-4,000 miles before replacement. My Internet Kuhmo order went thru, but later got a call on my cell. I had a spirited discussion with the Rep. Who flagged my order and refused to sell me another one in spite of my positive review of one all ready on it. He said Politics was not the issue, but safety. I challenged all his B.S. , but now, in spite of my great experience with this tire, I will never buy any thing from Discount Tire again. So, question now is, any positive recommendations on the best tire to replace the rear, size 225/50/15? OEM Kenda is out. I HATE that tire. Thanks.
Last edited by 007james; 11-19-2015 at 09:14 PM.
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Very Active Member
KUMHO ARE 'IN'....
Originally Posted by 007james
Thanks for this information. My fronts will be ready soon. I have a 2012 RT Limited, and ordered my 2nd Kuhmo for the rear today. My OEMs got 8500 miles each, and I switched to Kuhmo which has been a great tire. It has 10,000 miles on it now , and has not quite hit the wear marks yet, so I expect another 3-4,000 miles before replacement. My Internet Kuhmo order went thru, but later got a call on my cell. I had a spirited discussion with the Rep. Who flagged my order and refused to sell me another one in spite of my positive review of one all ready on it. He said Politics was not the issue, but safety. I challenged all his B.S. , but now, in spite of my great experience with this tire, I will never buy any thing from Discount Tire again. So, question now is, any positive recommendations on the best tire to replace the rear, size 225/65/15? OEM Kenda is out. I HATE that tire. Thanks.
KUMHO ARE AVAILABLE AT MANY OTHER TIRE CENTERS ACROSS THE U.S.A.
SEARS CARRIES KUMHO TIRES, TIRE KINGDOM, TIRE RACK, etc... DON'T LET 'DISCOUNT TIRE' DICTATE WHAT YOU WANT FOR ANY OF YOUR RIDES, WHETHER IT BE YOUR SPYD3R, CAR, TRUCK or GO-KART..... DISCOUNT TIRE IS A NON-COMPANY TO A LOT OF US, AND WE WILL NEVER SPEND A DIME WITH THEM AGAIN.... WHICH I'VE NEVER PURCHASED ANYTHING FROM THEM IN MY 67 YEARS....
LOOK AROUND ON THE INTERNET, YOU'LL FIND THEM... OR, YOU CAN CALL CHRIS @ KUMHO IN GEORGIA, HE'LL HELP YOU OUT....
CALL; Chris Han
|KUMHO TIRE U.S.A. INC.|
| Asst. Product Planning Manager |
| 10299 Sixth Street, Rancho Cucamonga, CA 91730 |
| Office: 909-428-3395
DAN P
SPYD3R
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Originally Posted by SPYD3R
KUMHO ARE AVAILABLE AT MANY OTHER TIRE CENTERS ACROSS THE U.S.A.
SEARS CARRIES KUMHO TIRES, TIRE KINGDOM, TIRE RACK, etc... DON'T LET 'DISCOUNT TIRE' DICTATE WHAT YOU WANT FOR ANY OF YOUR RIDES, WHETHER IT BE YOUR SPYD3R, CAR, TRUCK or GO-KART..... DISCOUNT TIRE IS A NON-COMPANY TO A LOT OF US, AND WE WILL NEVER SPEND A DIME WITH THEM AGAIN.... WHICH I'VE NEVER PURCHASED ANYTHING FROM THEM IN MY 67 YEARS....
LOOK AROUND ON THE INTERNET, YOU'LL FIND THEM... OR, YOU CAN CALL CHRIS @ KUMHO IN GEORGIA, HE'LL HELP YOU OUT....
CALL; Chris Han
|KUMHO TIRE U.S.A. INC.|| Asst. Product Planning Manager |
| 10299 Sixth Street, Rancho Cucamonga, CA 91730 |
| Office: 909-428-3395
DAN P
SPYD3R
I agree. I think most any local tire center will order what ever you want. My local guy got my last Kumho tire in a few days just like when you order it yourself. He charged ten dollars more than Discount tire but installed and balanced it for $25.
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Active Member
Update on my research on why it may be difficult to buy my desired Khumo Tire
After searching the Internet for the Kuhmo Tire I am trying to buy, this tire ( 225/50R/15 ) appears to be scarce, or only available at Discount Tire who won't sell it to Spyder Owners.eBay sells it, but but by Discount Tire. Since I like the tire so much, I have called most of the Sites listing them, but am told they either no longer carry them, or they must be ordered on line which always ends up being a Catch 22. Finally, this morning, I discovered these complaints about Khumo Tires on the Consumer's Affairs site, which most likely, is why this tire has suddenly become so hard to obtain.
http://www.consumeraffairs.com/tires/kumho.html
I have decided to stay away from this tire based on this relevant information. I want to stay with the exact same size, so may have to end up going back to the OEM Kenda and just keep replacing it every 8500 miles. Wanted to share this with the Group.
Cheers, 007james
Originally Posted by SPYD3R
KUMHO ARE AVAILABLE AT MANY OTHER TIRE CENTERS ACROSS THE U.S.A.
SEARS CARRIES KUMHO TIRES, TIRE KINGDOM, TIRE RACK, etc... DON'T LET 'DISCOUNT TIRE' DICTATE WHAT YOU WANT FOR ANY OF YOUR RIDES, WHETHER IT BE YOUR SPYD3R, CAR, TRUCK or GO-KART..... DISCOUNT TIRE IS A NON-COMPANY TO A LOT OF US, AND WE WILL NEVER SPEND A DIME WITH THEM AGAIN.... WHICH I'VE NEVER PURCHASED ANYTHING FROM THEM IN MY 67 YEARS....
LOOK AROUND ON THE INTERNET, YOU'LL FIND THEM... OR, YOU CAN CALL CHRIS @ KUMHO IN GEORGIA, HE'LL HELP YOU OUT....
CALL; Chris Han
|KUMHO TIRE U.S.A. INC.|| Asst. Product Planning Manager |
| 10299 Sixth Street, Rancho Cucamonga, CA 91730 |
| Office: 909-428-3395
DAN P
SPYD3R
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Registered Users
Originally Posted by 007james
After searching the Internet for the Kuhmo Tire I am trying to buy, this tire ( 225/50R/15 ) appears to be scarce, or only available at Discount Tire who won't sell it to Spyder Owners.eBay sells it, but but by Discount Tire. Since I like the tire so much, I have called most of the Sites listing them, but am told they either no longer carry them, or they must be ordered on line which always ends up being a Catch 22. Finally, this morning, I discovered these complaints about Khumo Tires on the Consumer's Affairs site, which most likely, is why this tire has suddenly become so hard to obtain.
http://www.consumeraffairs.com/tires/kumho.html
I have decided to stay away from this tire based on this relevant information. I want to stay with the exact same size, so may have to end up going back to the OEM Kenda and just keep replacing it every 8500 miles. Wanted to share this with the Group.
Cheers, 007james
If you want to stay away from the Kuhmo, and keep the OEM size, try the Toyo Proxes 4 : http://www.toyotires.ca/tire/pattern/proxes-4. I did and was able to get one easily from a local Toyo dealer, and in my exact OEM size for my 2015 RTL being 225/50R15. I prefer to stick with OEM tire sizes due to the fact that the Spyders safety features, like ABS for one, are dependent on speed measurement, and changing the tire size circumference throws off the speed measurement. If you want to see the difference a tire size makes in speed measurement, check out this tire size calculator that will calculate the difference in speed for a difference in tire size : http://www.anycalculator.com/tiresize.htm
Last edited by spydermanstever; 11-20-2015 at 12:55 PM.
SpydermanStever
2015 CanAm Spyder RT Limited
Intense Red Pearl
Garmin Montana 650 GPS
Spyderpops Bumpskid
BajaRon Anti-Swaybar
FOBO Tpm's
Lamonster Lidlox Combo Handlebar Helmet Locks, Spyder Cuff Cup & Phone Holder
Big Bike Parts Fairing Bra
Custom Dynamics LED lighting - high mount brake light and all reflectors changed to LED
WOLO Air Horn
BRP CB, Satellite Radio, Headset
BRP RT-622 Trailer
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Very Active Member
Originally Posted by 007james
After searching the Internet for the Kuhmo Tire I am trying to buy, this tire ( 225/50R/15 ) appears to be scarce, or only available at Discount Tire who won't sell it to Spyder Owners.eBay sells it, but but by Discount Tire. Since I like the tire so much, I have called most of the Sites listing them, but am told they either no longer carry them, or they must be ordered on line which always ends up being a Catch 22. Finally, this morning, I discovered these complaints about Khumo Tires on the Consumer's Affairs site, which most likely, is why this tire has suddenly become so hard to obtain.
http://www.consumeraffairs.com/tires/kumho.html
I have decided to stay away from this tire based on this relevant information. I want to stay with the exact same size, so may have to end up going back to the OEM Kenda and just keep replacing it every 8500 miles. Wanted to share this with the Group.
Cheers, 007james
http://www.motorcycle-superstore.com...hnid-rear-tire
2016 F3 Limited
2019 Ryker Rally
2014 Suzuki V Strom 650
2020 CSC TT 250
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Very Active Member
Originally Posted by 007james
After searching the Internet for the Kuhmo Tire I am trying to buy, this tire ( 225/50R/15 ) appears to be scarce, or only available at Discount Tire who won't sell it to Spyder Owners.eBay sells it, but but by Discount Tire. Since I like the tire so much, I have called most of the Sites listing them, but am told they either no longer carry them, or they must be ordered on line which always ends up being a Catch 22. Finally, this morning, I discovered these complaints about Khumo Tires on the Consumer's Affairs site, which most likely, is why this tire has suddenly become so hard to obtain.
http://www.consumeraffairs.com/tires/kumho.html
I have decided to stay away from this tire based on this relevant information. I want to stay with the exact same size, so may have to end up going back to the OEM Kenda and just keep replacing it every 8500 miles. Wanted to share this with the Group.
Cheers, 007james
Not sure why the exact size is important. I have a 215/60/15 on the rear of my RT for 15,000 miles with no problems or complaints.
2016 F3 Limited
2019 Ryker Rally
2014 Suzuki V Strom 650
2020 CSC TT 250
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Very Active Member
YOUR SOURCE OF INFORMATION ??????
Originally Posted by 007james
After searching the Internet for the Kuhmo Tire I am trying to buy, this tire ( 225/50R/15 ) appears to be scarce, or only available at Discount Tire who won't sell it to Spyder Owners.eBay sells it, but but by Discount Tire. Since I like the tire so much, I have called most of the Sites listing them, but am told they either no longer carry them, or they must be ordered on line which always ends up being a Catch 22. Finally, this morning, I discovered these complaints about Khumo Tires on the Consumer's Affairs site, which most likely, is why this tire has suddenly become so hard to obtain.
http://www.consumeraffairs.com/tires/kumho.html
I have decided to stay away from this tire based on this relevant information. I want to stay with the exact same size, so may have to end up going back to the OEM Kenda and just keep replacing it every 8500 miles. Wanted to share this with the Group.
Cheers, 007james
On your getting a Spyder and to finding this site...........I see you have been a member for " two " days and are already willing to help us out with your discoveries about TIRES........Well I followed your LINK and also did some research on the source of your information......I dis-covered that CONSUMERAFFAIRS also has rated other tire companies besides KUMHO.......Their findings were very enlightening. They rated the Cooper, Yokohama, Michelin, Firestone, Good Year, Bridgestone, BF Goodrich & Continental tire co's at 1 1/2 stars or less......They rated this company with FIVE STARS - - the MAVIS TIRE Co.- - - , I have never heard of the Mavis tire Co....but they beat all the others for quality and performance by A LOT....................Sooooooooooo my guess is MAVIS was willing to buy a five star rating and none of the others were........Soooooooo if you want to believe - CONSUMERAFFAIRS - I wish you a lot of luck........Mike
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Active Member
Rating Tires is like rating Religion and Politics.
Hi Mike,
Yes, I have only been a member for two days, but a riding Spyder Lurker since I bought my new RT Limited Feb. 2012. I prefer riding than posting,.....unless I need help. Until this tire issue surfaced, I found all the help I needed just by reading the posts. I don't have a dog in the fight, so just have to trust my own instinct in what I end up trusting under butt. I just logged 27,600 miles on my clock on my ride today. My Throttle Bodies were replaced on Warrantee at 12,700 miles, but other than that, my RT Limited has been problem free. I have not had Valve clearance checked nor Spark Plugs yet. Unless it starts missing or running badly, I plan to keep running it.
007james
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Very Active Member
THIS IS THE POST - 007JAMES IS ALL UPSET ABOUT
PS, " griffontamer " said essentially the same thing, but for some reason 007james wasn't offended .....He actually Thanked Her ................ 007james I know whose playbook you are following, I think you are heading down the wrong road ...... Mike
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