Description: - Premium aluminium alloy bike front fork refitting cap to decorate your bikes - Suitable for most 28.6mm/1-1/8" steerer tube bikes - Sealed rubber rings inside and outside prevents dust, dirt to protect your fork - Please noticed that you need to add 1/2 washers to headset after changing - Outer Diameter: 47.6mm/1.87inch; Inner Diameter: 28.6mm/1.12 inchPackage Includes:1 Piece Bike Front Fork Top CapNote:Please allow slightly difference due to manual measurement. Color may be slightly different since different monitor. Thanks!