Bike Chain Guide Mtb Bike Protector Road Bicycle

The hollowed out design reduces weight and makes riding easier. Material: Aluminum alloy Used for single-disc sprocket, the gospel of the rushing party. It can be used on the tube in the frame to effectively prevent the chain and chain from jumping, ensure safe and smooth driving. More compatible, the original frame of the tube 34.9mm diameter convertible to a diameter of 28.6/31.8mm after installation. Package Included: 1x Chain guide, 2x Conversion film, 2x Wrench. Size: About 68.4x68.6x57.2 mm

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