i ran on 15" stock OEM wheels and 205/50R15 V710's for a while. and soon i will be running 225/45R15 v710s, so 15" tires are not hard to find.
May 2014 ROTM, June 2015 ROTM
for auto-x: '04 Liquid Grey ZX3
for street: '02 Infrared SVT