Originally Posted by
nymtber
I have Mavic Aksion tires (25c)currently, supposidly the same as Vittoria Zaffiro Slicks. For inexpensive tires, I like them, but they are a tad harsh compared to (23c) Michelin Krylion Carbon tires.
I'm switching to Vittoria Rubino Pro Slicks next, myself. 23 or 25, not sure yet.
My take is that Rubino 23s are as wide as most 25s. My favorite tires are the Rubino Pro III 23s and the Forte Pro+ wire bead 25s, which are narrow as many 23s. The Fortes, which are ostensibly 25s, are slightly narrower than the Rubino 23s. I feel that Conti's are nominally closest to the width that they are advertised.