It will really depend on the bike. My Funny Bike really doesn't like anything wider than 23mm. I suppose I can fit 25mm in, but it will be awfully tight.
I've heard of quite a few bikes from around 2000 to 2010 that did better with 23mm (TT, Tri, etc).
Last edited by CliffordK; 07-25-21 at 02:24 AM.