[dundundata]

Anyone know - is there any difference between the upper and lower pulleys?

http://www.amazon.com/Shimano-Upper...=sporting-goods&ie=UTF8&qid=1298930805&sr=1-3

 

[AKamp]

Shimano upper pulleys all use a floating design on a ceramic bushing. Bottom pulleys are fixed.

 

[dundundata]

thank you very much