SRAM Derailleur. Jockey Wheel Bearing Kits. --- Jockey Wheel Bearings ---. bearing contains. bearing balls in case. Each Hybrid Ceramic 2RS. silicone nitride ( ceramic Si3N4 ). - Grade 1.4125 SS.
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KOCAN Ti Bolts, 2PCS Titanium Bicycle Rear Derailleur Jockey Wheel Bolt for MTB Road Bike M5×14.2mm Bike Guide Roller Bolt Screw
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MTB 11T/13T Bicycle Rear Derailleur Jockey Wheel Ceramic Bearing Pulley UK
