BBB CERAMIC ROLLERBOYS JOCKEY WHEELS 11T SHIMANO 9/10
11T Compatible with Shimano 9 and 10 speed
RollerBoys equipped with ceramic bearings for ultra-smooth gliding and almost no resistance.
Composite material provided by EMS Swiss, with 40% glass-fibre mixture.
All bushings for different shifting systems included.
As with any product, specification is subject to change without prior notification. You are advised to confirm current specification before buying.