1 Rear Derailleur Wheel. Sealed steel bearing, waterproof and dustproof, super. Made of aluminum alloy and ceramics, light weight, stylish appearance and strong compatibility. Material: Aluminum alloy tooth/ceramic bearing.
Rear Derailleur Pulley Aluminum Alloy Dustproof Light Weight Replacement
Pratical Rear Derailleur Pulley Aluminum Alloy Ceramics Dustproof Light Weight
Pratical Rear Derailleur Pulley Aluminum Alloy Ceramics Dustproof Replacement
Pratical Rear Derailleur Pulley Aluminum Alloy Light Weight Waterproof
Pratical Rear Derailleur Pulley Aluminum Alloy Ceramics Dustproof Waterproof
POENVFPO 11T Bike Rear Derailleur Pulley, Aluminum Alloy Hollow Ceramic Pulley with Zirconia Ceramic Ball, Red Bike Derailleur Pulley for Mountain Bike