Great for both road and mountain bikes, this bicycles Taper Washer provide a secure and stable use The Bike Front Fork Conical Stem Spacer can easily installed on your bike Make from high strength aluminum alloys, this spacer is both light weight and enduring Feature inner diameter of 28.6mm and height of 15mm, this spacer ensures a proper suitable for fork steerer tube and headsets assemblies Equipped with waterproofs and dustproof sealing rings, it effectively protects the fork headsets assembly from wear and tear