Primo Champion 20 x 1 (451) 110psi black tire

Fast narrow tire for light riders or when speed is the most important consideration. Good for hill climbs and time trials. Bike Friday bikes can be built with either 451 and 406mm rims. Both sizes can be referred to as 20" wheels, when the 451 is a larger rim. Confirm you have a 451 or a 406 before ordering by looking on the side of your current tire to confirm the rim diameter.