Bicycle front fork head tube heightener Aluminum alloy extender stem heightener

describe: 100% brand new and high quality. 4 height adjustment washers for quick and easy. Lightweight design, reducing the burden of riding. Specification: Color: red, blue, black, gold, silver Dimensions: Height: 121MM, Down Tube Inner Diameter (with front fork): 28.6MM. The outer diameter of the upper tube (fit with the valve stem): 28.6MM. Features: High Quality Material: high strength alloy Package Included: 1* handlebar extender notes: 1. Due to various factors such as monitor brightness, light brightness, etc., the actual color of the product may be slightly different from the picture displayed on the website. 2. Please allow for slight manual measurement deviations in the data.