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Go-Kart Mozart
Join Date: Oct 2009
Location: Ole Miss by damn!
Posts: 1,380
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Top one definitely needs to float to assist in shifting. Way back in the day the sleeper mountain bike upgrade was Dura-Ace jockey wheels. Ceramic bushings and nice rubber seals to keep the dirt out. IIRC they were a touch thinner as well. Lots of folks pimping anodized this and billet that, but they never shifted as well as Shimano jockey wheels. That was of course a long time ago. I have no idea what the aftermarket looks like now.
Just went outside and looked at my 15+ year old mountain bike. XT mid-cage deraileur and Dura-Ace jockeys.
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