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.
Derailleur Jockey Wheel Ceramic Bearing Aluminum Alloy MTB Mountain Bike Guide
Rear Derailleur Jockey Wheel Ceramic Bearing Aluminum Alloy MTB Mountain Bike
Bicycle Rear Derailleur Jockey Wheel Ceramic Bearing Aluminum Alloy MTB Mountain
Jockey Wheel Ceramic Bearing Aluminum Alloy MTB Mountain Bike Guide Roller