I came to school in the city with an old schwinn world 10 speed, i got tired of the gears pretty fast, so after the first month i hacksawed off the larger chainwheel(they were solid, not bolted on) took off the derailers, and shortened the chain so it was just long enough to go around the smallest rear sprocket and back, so even though it's still techically a single speed, it still has the 5 rear sprockets, it's been about another month and i think I'm about ready to turn it into a fixed gear, but my question, is what size are the threads on a road bike hub? my bike has a freewheel on it, it's not a cassette, and i have a singlespeed sprocket that i used to have on a bmx bike just to play with, is there any chance that sprocket will fit? if nothing else i can take it to the bike shop, and take off my freewheel, and try this one on, i just don't have the freewheel tool at home, otherwise i'd just try it
