MrSkinny wrote:
Michelin Pro 4 COMP. The 23 is about 21mm wide, at least on the rim I tried (but the tyres are expensive too).I just switched from Pro 4 Comp to Conti 4000S last week. Measured both with calipers on the same rim. Both tires were the same exactly 23mm, within 1/10th of a mm.
Edit: this was on SRAM S60 (hybrid toroidal carbon clincher rim with alu bead and alu brake surface), pumped to 110psi.