Tire clearance on 2019 Trek Crockett Has anyone tested max tire width on a Trek Crockett (2019 frameset)? Wondering specifically if I can fit 45mm tires on 19mm inner width rims.
Suggests that 19mm is the upper limit for 45mm tyres but should still work.

If you have any choice, 23mm wide rims would be better.  Depends if in the future you want larger than 45mm wide tyres, or smaller.