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Jockey Wheel Ceramic Bearing Aluminum Alloy MTB Mountain Bike Guide Roller

£4.19

11T Bicycle Rear Derailleur Jockey Wheel Ceramic Bearing Aluminum Alloy MTB Mountain Bike Guide Roller. 1 X 11T Bicycle Rear Derailleur Guide Roller. Screw hole of rear gear: 8.9mm/0.35". Material: Aluminum alloy.