Originally Posted by
cubewheels
You could but you'll have to use higher air pressure than you normally would with the tire size and loaded weight over the wheel.
Wut? I guess maybe, by 1 or 2 psi, but the actual inflated width of the tire from a 19mm to a 25mm rim could be no difference to a few mm at most. We are talking such miniscule differences, that the psi differences will be more dramatic by changing tire size than rim width.