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.
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Pratical Rear Derailleur Pulley Guide Wheel Aluminum Alloy Replacement
Rear Derailleur Pulley Guide Wheel Aluminum Alloy Dustproof Waterproof
Rear Derailleur Pulley Guide Wheel Ceramics Dustproof Light Weight Dustproof
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