Originally Posted by
Unca_Sam
Sy Reene Here's a
comparison. Apparently it's only a 1/10th of a mm thicker, with a small penalty to rolling resistance. Otherwise indistinguishable
The important part is this. ie. you get 3mm more coverage of the 2.7mm thick part of the tire, instead of the .9mm sidewall. Which on 25s I find to be enough on my wheels to bring the tread out to the widest part of the inflated tire for more sidewall protection. ymmv