Sealed steel bearing, waterproof and dustproof, super. Material: Aluminum alloy + Steel bearing. 1 x Rear Derailleur Wheel. Suit for 8/9/10/11 speed Rear Derailleur. Made of high quality material, and practical to use.
Guide Wheel Wheel Road Bicycle Aluminum Alloy Bearing Pulley
Guide Wheel Wheel Road Bicycle 11T 13t Aluminum Alloy MTB Ceramic
11T/13T Road Bicycle Rear Derailleur MTB Ceramic Bearing Guide Wheel DE
