zombiemiked
Active Member
Am I correct in thinking that if I change a 52/39 chainset for a 50/34 the only thing I will have to do is shorten the chain length?
Am I correct in thinking that if I change a 52/39 chainset for a 50/34 the only thing I will have to do is shorten the chain length?
He's changing the complete chainset.Wait up,you'll need a new crank as well. The bolt circle diameter is different.