Originally Posted by
rch427
I am building up a 45 year-old handmade British frame, and am trying to figure out what my (clincher) rim options are. The frame may have originally had 27" rims fitted to it
I meant to say: fit the brakes you want to use, measure from axle centre to brake block centre in millimetres and double it to get the rim diameter. Compare with available
rim sizes (the centre of the braking surface is about the same place as the bead seat).