Joined: Dec 2004
Posts: 12,560
Likes: 799
From: Middle of da Mitten
Bikes: Trek 7500, RANS V-Rex, Optima Baron, Velokraft NoCom, M-5 Carbon Highracer, Bacchetta Quattro, Catrike Speed
My V-Rex has 451 in front. When I switched from the OEM IRC to a 37x451 Comet, it improved the ride dramatically. I think they are faster, too; but that could be the placebo effect. Right now I've got a Stelvio on it. It's the first Stelvio I've ever had that lasted more than 2 months.