Racing Tire Size
 

As I draw ever closer to affording a set of Falken Azenis 615 tires, I need to decide what tire size. These are going on my GS rims (stock size of 215/55/16). I'm thinking of getting 215/45/16 as it would very slightly reduce my final drive ratio but the tires are also available in 225/50/16. I don't think sidewall roll would be much of an issue so the question is which is more beneficial, a centimeter off the tire's radius or an extra centimeter of traction.

Links for reference:
http://cgi.ebay.com/ebaymotors/1-NEW...205|240%3A1318

http://cgi.ebay.com/ebaymotors/1-NEW...Q5fAccessories

45's might be good. it'll make ur shifts shorter, which may help out with those low rpm 2nd gear times. also less sidewall=quicker response, but i auto-x on 225/50's on the GS wheels and it was pretty good but i think the 45 might be worth a try.

get the 225s.

btw 225/50's are what's on brian's nsx wheels. althou its a wider rim.

I really wish Falken would offer a 225 40 16, or even a 235 40/45 but there just doesn't seem to be that many people running them on 16" rims.

Ken - I'd go with the 45 sidewall - I like my tires and I haven't felt any sidewall flex with the 50's but with a 6.5" rim, I'd suggest the lowest sidewall available to keep flex at a minimum.

You can get that size on the Toyo Proxes T1Rs.
http://www.wheelsnext.com/tires/Toyo-Proxes%20T1r.html

t1r's are badass, they are awesome on the track, and have great wet traction, however the 615's are stickier dry with very little wet traction

T1R's are also $40 more a tire...

whats wrong with bfg kdw's?

ugh?? on a scale of 0-10. the kdw's r 5, toyo's 9 and 615 11.