1 Rear Derailleur Wheel. Made of aluminum alloy and ceramics, light weight, stylish appearance and strong compatibility. Material: Aluminum alloy tooth/ceramic bearing. Sealed steel bearing, waterproof and dustproof, super.
Rear Derailleur Pulley Aluminum Alloy Replacement Sealed Steel Bearing
Pratical Rear Derailleur Pulley Aluminum Alloy Ceramics Dustproof Replacement
Pratical Rear Derailleur Pulley Aluminum Alloy Ceramics Dustproof Light Weight
Pratical Rear Derailleur Pulley Aluminum Alloy Ceramics Dustproof Waterproof
Pratical Rear Derailleur Pulley Aluminum Alloy Light Weight Waterproof
11T-17T Rear Derailleur Pulley Guide Wheel Replacement Sealed Steel Bearing New