Originally Posted by
brad3104
and for the front...well his website doesnt even list 20x1.35 on the chart which i find strange....under 406 mm he includes 20x1.5-20x2.125. Maybe thats a typo?
I don't think Sheldon got a chance to update that chart before he passed. Fortunately, it's still the same "standard": a 20 x x.xx" tire will fit the 406mm bead seat diameter rim. 20 x 1.35", 20 x 1.25" (I have one of these), 20 x 1.125", and 20 x 1.10" will all fit that rim.
(The wild card is the Continental Grand Prix. Continental calls it a 20 x 1 1/8", but it also fits a 406mm BSD rim. Usually fractional sizes are used on the larger 451mm rims. Grrr...)