Quote:

For those who don't know tire sizing too here it is simplified. 170-80 15, the 170 is the width measured at the widest part of the tire when fully inflated, not the tread width. The 80 means the side wall height is 80% of the width. The 15 is the rim diameter.



The width is in mm however the diameter is in inches.


2007 Speedmaster w/ SS Long Slash Cuts, K&N, Polaris Bellmouth, and AI Removed 132/42/2.0 Turns Out/No Shims