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Brand Name: SILVEROCK
Use: Mountain Bikes
Chainwheel Teeth: 30-40t
Category: Chain Wheel
Model Number: BB30-Y
Crank Length: BB30
Material: Aluminum Alloy
Materal: Alloy 7075-T651
Color: | Blue, Purple, White |
Size: | 20, 24 |
Material: | 100% Polyester |