Is there any width differences between the cages between 8 and 9 speed shimano rear mechs in terms of the jockey wheels they accept? I've been sent a 9spd wheel by a shop instead of the 8 i ordered, is it going to be too narrow? Or will it mess something else up - there will be an 8sps jockey wheel as it's partner.
Also - what are the widths for 7/8/9 spd jockey wheel bolts? They have some ally ones here:
http://www.billys.co.uk/english/group.p ... kp44s64b35
but there are 3 lengths listed - is it long for 7, medium for 8 and short for 9spd? might do a group buy and post them cheaply if anyone wants a set but not pay twice as much in postage (couldn't find post price but probs expensive)