Old 12-16-14, 02:39 AM
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How much do fatter rims affect tire size?

My bike has 50mm wide rims and 2.125" Felt "Circuit" tires. The tires on these rims come in at 63mm at the widest point, which is almost 2.5 inches. I don't know if that's just standard tire sizing variance, or due to the rims. They seem heavy and slow to me, so I'm looking for something fat and fast, but I think most manufactures post sizes based on narrower rims. I have ~1.5cm clearance between these tires and fenders at all points. What size range do you think I should be looking at? Any chance I could fit a tire labeled at 2.5", or would that likely be too big? I'd like to go as big as possible.
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