AITA full ceramic jockey wheel set installed with Grade 3 Si3N4 ceramic balls and ABEC 7 ZrO2 ceramic races. Compared with the steel race, ZrO2 ceramic race is 1.7 times harder, 25% lighter. It only consumes 9.7% of the power compared with Shimano Dura Ace and Ultegra wheels in average, and 25% vs SRAM Red/Force/Rival wheels. It is near frictionless and eliminates the last bit of the watt loss. With the carbon fibre wheel body, it is as light as 14g.
2 year warranty.
Free shipping worldwide.
2 full ceramic carbon fibre body jockey wheels;
11 tooth carbon fibre wheel body;
ABEC7 ZrO2 ceramic races;
Grade 3 Si3N4 ceramic bearing balls;
Nylon bearing retainer;
11 tooth Shimano and SRAM rear derailleur system, 10/11 speed compatible
11 tooth Campagnolo rear derailleur system, 11 speed compatible
Note: If you are not sure about the bolt size please select 5mm bolts option as it will fit 5mm and 4mm bolt cages.