CeramicSpeed pulley wheels save energy and last longer. Of all the bearings on a bicycle, pulley wheels spin at the highest RPM (4-5 times faster than the bottom bracket on a road bike) and offer a great opportunity for saving power. CeramicSpeed pulleys are precision machined out of aluminum and feature grade 3 ceramic bearings as well as hardened races and low friction sealed.
Weight | 0.25 lbs |
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Feature | RD2001 |
Derailleur | Shimano 9/10 Speed, SRAM Red, Campagnolo 11 Speed |
Color | Black, Red |