Originally Posted by
JayNYC
Last year Fuji was saying the bike could take 650b x 50. Now they say 650b x 47, but they added a note saying it depends on the rim and the tire – probably exactly for the reasons you mention.
I want whatever rides better. I supposed I can always get a smaller tire, like a 45 or something… And I'm not looking for a knobby tire, so that helps with clearance.
Go with a 20mm so you have no issues with whatever tire you choose. Wider rims are more advantageous for really wide tires. For our purposes I don't see the benefit as long as it measure pretty close to advertised size.