Description: This product is used to protect the steel wire in rear wheel flywheel. High strength, not easily broken, anti-wear. Light weight, suitable for mountain bikes, road bicycles, folding bike etc. Specification: Material: Outer Diameter: Approx.135mm / 5.3inch Inner Diameter: Approx.38mm / 1.5inch Color: Black Package Includes: 1 Pieces.
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