Originally Posted by
alcjphil
Your original question did NOT make this clear. In any case, the newer derailleurs have narrower cages designed for narrower chains. There is no need to be rude
The orignal title DID.
The space between the inner and outer cage is determined by the width of the pulleys, not by the chain.
By using the RD-6500 pulleys on a different cage than original the distance between the inner and outer cage would remain the same.
Some have even used a single cage.
