Bike Pulley 11T 12T 13T 14T Rear Derailleur Jockey Wheel 7 8 9 10 11 12 Speed Ch
Specifications: 11/12/13/14T. The gap on the side of the guide wheel is to avoid friction with the large cover and ensure the guide wheel can run smoothly. This is a key factor that must be considered during the design and production of the bicycle derailleur guide wheel.
Ceramic Bearing Jockey Wheel 11T 12T 13T 14T 15T 16T 17T MTB Road Bike Rear Dera
Specification: 11/12/13/14/15/16/17T. MUQZI Ceramic Jockey Wheel. Its smooth transmission reduces drivetrain resistance, effectively restrains lateral chain sway, and ensures more precise gear shifting.