Working on HIM…I have seen that it is better to have 23 mm tires on 25 mm rim because when it inflates, the size of the tire is the same as the bigger rim. This makes the wheel+tire more aero.
I just purchased a 25 mm SAT wheel and wanted to know if this is the same for tubeless:
1- Would a 23mm TL tire latch on a 25 mm rim?
2- Would I benefit on a 23mmTL tire on a 25 mm rim?