Description: - 【Specifications】: The Bike Wheel Hub Axle Nuts features a thread pitch of M9*1.0, making it suitable for standard M9 bicycle wheel axles. - 【Compatibility】: This front wheel nut is fit for the majority of M9 specification wheel axles on the market, including front hub of fixed gear bikes, front wheel of road bikes with solid axles, and some non quick release mountain bike front hubs. - 【Advantages】: Made from high strength aluminum alloy, this nut boasts a great appearance and lightweight design. The nut incorporates an antislip design for a more lock when tightened. - 【Installation】: A 16mm open end wrench is required for installation. - 【Material & Size】: Made from 7075 aluminum alloy with dimensions of 20*12mm. Each package includes two pieces. Package Includes: 2 Bike Wheel Hub Axle Nuts Note: Please allow slightly errors 1-2cm differences due to manual measurement.