bikemike wrote:I think I could squeeze a 180 in there, my tire guy says the rim will handle it.
sorry, but your tire guy is an idiot. yes a 170 or a 180 can be put on that rim, but youre distorting the carcass, forcing it to be narrower than it wants to be. The result? a highly triangular profile, with a smaller contact patch when upright (as in, not leaning for a turn) and the tendency to 'fall' into corners. Not to mention riding on the tire while the carcass is distorted puts loads thru it the tire wasnt made for, and in the worst-case scenario, can overheat and possibly delaminate the tread. Stick with 160s, its plenty of tire for a bike this size, the rim is sized for it, and its lighter than a 170 or 180 (dont forget, extra tire weight is also rotating, unsprung weight as well)