Current slicks

[spamanglenn]

I picked up some current model dunlop slicks(2nd hand).Man they are tall.The front is a 125/80 and the rear is a 195/70.The rear is a full 9cm greater in its circumference than a 200/50 020 bridgestone or 7cm greater than my 190/55 pirelli.I figured 2cm is just a little more than a tooth so it would need 4-5 teeth on the rear to re establish stock gearing.