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Rear tire options - any suggestions?

R.S.S.

New member
I know this subject has been driven into the ground but, I just spent the better part of the day trying to locate any 225/50/R15's. The Toyo Extensa HP II and the Kumho ECSTA AST'S are no longer available. I thought I found an east coast vendor "Gun Hill Tire" but the last 6 they had were bought up by 1 person. Any other suggestions? Or are we stuck with the Kenda Kanine. I ride my F3-T rather aggressively.
 
If your only consideration is the 225/50R15, then your options are extremely limited. Though I personally think the Kenda Kanine is a reasonable option unless longeviety is at the top of your list.

If you expand your size requirements a bit, the number of possibilities grow.
 
Not a fan of loosing the shorter sidewall to a taller/narrower tire. I've been there before and the additional roll in the corners is to pronounced for me. Maybe Can Am should start going to a taller wheel...
 
Not a fan of loosing the shorter sidewall to a taller/narrower tire. I've been there before and the additional roll in the corners is to pronounced for me. Maybe Can Am should start going to a taller wheel...
Trouble is the Kenda is not true to the nominal size. We sell and install Yokohama ADVAN 205/55R15 and they are exactly the same outside diameter as the oem Kenda and less than 1/8" narrower. You have to compare actual dimensions, not nominal size because like every other specification, junk chinese imports lie about the specs.
 
Not a fan of loosing the shorter sidewall to a taller/narrower tire. I've been there before and the additional roll in the corners is to pronounced for me. Maybe Can Am should start going to a taller wheel...
I have been run the General Altimax RT45 and RT43 that size and like to play in the twisties. They handle great along with Vredestien Quatrac up front.
 
I'm on my third General Altimax, an RT-43, and will go to an RT-45 when the current one needs replacing. If I was unable to purchase an Altimax I would jump on jc's recommended Yokohama based on 11+ years viewing this forum.
 
I run a Bridgestone Potenza RE-71RS summer performance tire, 225/50R15. Very sticky, very stable. Has made a run from extreme south Texas to northern Arkansas (in one day) and back with no problems. Kinda expensive, but it sticks well in the twisties, and at the drag strip. I am MORE than happy with it. Just can’t use it in temps below about 40°F.

IMG_0508.jpeg
 
The OEM Kenda is low profile and wide. But with weak sidewalls, it still tends to roll under. Add to this the weak tread belts allowing centrifugal force to bulge it in the middle, and you not only have a much smaller contact patch at speed, but a rounded tire center that increases the tendency to roll under.

A slightly taller, narrower tire with stronger sidewall and tread belts that give you 100% contact tends to improve on each of these aspects. 100% of 8" is better than 60% of 8.5".
 
The OEM Kenda is low profile and wide. But with weak sidewalls, it still tends to roll under. Add to this the weak tread belts allowing centrifugal force to bulge it in the middle, and you not only have a much smaller contact patch at speed, but a rounded tire center that increases the tendency to roll under.

A slightly taller, narrower tire with stronger sidewall and tread belts that give you 100% contact tends to improve on each of these aspects. 100% of 8" is better than 60% of 8.5".

True dat! (y)

Only in the case of the Kendas & their clones, the strip down the middle of the rear tire that's the only bit left in contact with the road surface once you get above about 30 mph or so is more like 30% of 8.5"!! 😖
 
The General Altimax RT45 is the upgraded RT43. Is there really much difference between the 205/60R15 and 215/60R15? What is the major difference between the Vredestien Quadtrac and the General Altimax RT? I'm driving a 2024 RT-L and my weight is 210 lbs.
 
The General Altimax RT45 is the upgraded RT43. Is there really much difference between the 205/60R15 and 215/60R15? What is the major difference between the Vredestien Quadtrac and the General Altimax RT? I'm driving a 2024 RT-L and my weight is 210 lbs.

Apart from some small and relatively inconsequential dimension differences (ie. They're both a little bit narrower than the OEM tires, and there's maybe as much as 10 mm difference in the width between those two and a couple of mms difference in the sidewall height as a result) there's effectively NO difference between those 2 tire sizes, except maybe ready availability of tires in those sizes in your area. ;)

Either is an ideal size to go on your Spyder, or maybe you could even go for a 205/65R15 - all THREE of those sizes are usually GREAT alternatives to the OEM size, and most manufactured tires in those nominal sidewall sizes come within a few mms of the OEM rolling diameter, generally being juuust a little bit taller/larger (by just a few mms tho, remember that!), which will usually help bring your speedo/odo/trip meters a little bit closer to showing your Spyder travelling at the correct speed/distance travelled instead of reading over/optimistic by anything up to maybe 10%! :rolleyes:

For most, all this ^ is yet another plus for running A/mkt tires in any of those sizes, but the REAL benefits (if you run them at the appropriate (lower) pressure required under a lightweight Spyder (usually 16-18 psi) due to the A/mkt tire's far more robust construction than the OEM cr... 'black round things that are the excuses for tires that BRP uses to keep the metal bits of the Spyder off the road'! 😣) come in the far better ride, handling, traction, longevity, cost effectiveness, and more that you'll get from just about any quality A/mkt tire run at the correct pressure for the load the Spyder imposes on them! ☺️

Here in Oz, it's pretty hard to get either Vredestein or General tires in any of those models/brands, so I can't help you with that, but if you look thru the hundreds of threads (maybe more??) about these tires that are already posted on the Forum, I don't think you'll find too many members/Spyder Owners who have had the slightest concern about running them instead of OEM &/or any of the OEM clones/rebranded versions! So take your pick, fit them, set them to the appropriate pressure, and enjoy! (y)
 
Sorry if this has been discussed before but with so much pushback against the Kendas, why hasn't BRP worked with other tire manufacturers and/or had Kenda improve the design?
 
Sorry if this has been discussed before but with so much pushback against the Kendas, why hasn't BRP worked with other tire manufacturers and/or had Kenda improve the design?
Best guess is BRP gets great pricing from Kenda in exchange for saying that is the only tire that should be installed. Like I have posted earlier, what if Ford had told owners of Explorers that were rolling over, that Firestone was the only tire we endorse for the your Explorer.
 
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