11T Bicycle Rear Derailleur Jockey Wheel Ceramic Bearing Aluminum Alloy MTB Mountain Bike Guide Roller. 5 11T Bicycle Rear Derailleur Guide Roller. Screw hole of rear gear: 8.9mm/0.35". Net weight: 13g.
5pcs 11T MTB Rear Derailleur Jockey Wheel Ceramic Bearing Guide Roller
5pcs 11T MTB rear derailleur jockey wheel ceramic bearing guide roller de
