I notice the CR's stock rears are 255/40-17, could that increase or reduce under-steer? I think I'll keep it at the Stock '04 size.

Great! Any comment on their feedback when the rear kicks out? My stock RE050As don't seem to give me much feedback or noise when reach the limit.

 

A larger rear tire relative to the front will reduce oversteer.

 

I notice the CR's stock rears are 255/40-17, could that increase or reduce under-steer? I think I'll keep it at the Stock '04 size.

Great! Any comment on their feedback when the rear kicks out? My stock RE050As don't seem to give me much feedback or noise when reach the limit.
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i have not been able to kick the rear out under spirited daily driving yet. the tire feels as if it just glues to the road the harder i push it. pretty awesome. it also rides smoother and more quiet compared to my previous set-up (which i could easily get the rear to kick out with). people will try and get you to not purchase them because of price...but they are like $150-$200 more for all 4 tires. i'm not going to cheap out on my car. not fair to it.

 

Just to confirm, Michelin Pilot Super Sports in 225/45/17 front, 255/40/17 rear should be OK for AP2 stock 17" wheels? No rubbing?

I like these tires (they seem a better balanced and less expensive choice vs. RE-11s for aggressive daily driving and wet weather) and would like a little more contact patch in the rear for grip, and a little more in the front to keep understeer in check.

 

you will be fine with that set-up.

 

They don't come in 255/40-17. 215/45-17 fronts and 245/40-17 rears will be fine. Could go 225/245, but looks kinda dumb IMO (big fronts/little rears).
The additional grip from slightly wider 225/255 tires is going to be negligible to nonexistent for most usage anyway, and they would theoretically hydroplane sooner. With 215/245, and you'll save a pound or two of unsprung rotational mass at every corner, and have an ever-so-slightly lower c.g. and ever-so-slightly better gearing

 

oh, whoops. correction: it would fit fine IF they were made in that size. i never bothered looking at other sizes when i bought them.

 

For some time now I’ve heard strong praise for the V12 evos and I’m not sure why after I recently had an opportunity to grab one off the shelf in person. The sidewalls on these tires are only a single ply and flimsy as fock, I couldn’t believe how soft they were, why anyone would consider putting these on a precision handling car like the S is beyond me! I most definitely would not put these in the rear coupled with some of the stiffest sidewall tires up front like the Bridgstones. The only thing I can think of as to why the v12 comes up so often as a choice is because of price and people don’t know any better. I wouldn’t touch that tire with a 10 foot pole. Basic rule of thumb guys, on the S2000 or any sport car for that matter, basic requirements for a tire is a twin ply sidewall.