I'm trying to assemble a commuter bike on the cheap and need some help with the rear wheel. The frame is a newer cross bike frame with 135mm of spacing (i think) but my older wheel is not as wide. Dunno exactly how wide... has a 6 speed cassette on it. Any possible way to safely lengthen the axle to make it fit? If i do have to buy a new wider wheel, is there any way to use my old six speed stuff with the newer hubs? Thanks!
Many replacement axles are available; a company called Wheels Manufacturing makes axles of all lengths with both 10mm x 1 (Shimano and others ) and 10mm x 26tpi (Campagnolo) threading. If you have a longer axle installed and keep your six-speed shifting system this will mean that the dish (offset between sides) has to be changed. This will give you close to a "dishless" and thus stronger rear wheel.