Originally Posted by invisiblehand
S&S couplings are sensitive to the shape of the tubes, however. Are the R20 tubes round?
I have been pretty happy with my NWT ... although I should tell everyone that you need to be pretty careful with the folding process to prevent bending the front derailer and braze-on mount.
Yes the R20 tubes are round.........I think oblong or oval shape would have blown everyones' mind in the 70"s
. Does anyone know the size though, and if S&S couplings make them that size?