Features: 1.APPLICABLE DISC: Folding bike front fork, suitable for 20in 406 disc V brake and 20in 451 disc C brake, bike common replacement part. 2.CARBON FIBRE: The front fork is made of all carbon fiber, has high strength, corrosion resistance, with good softness and processability. 3.EASY CONNECTION: The front for upper end is connected with the handlebar part, and the lower end is matched with the front axle part. 4.STANDARD SIZE: With fine manufacturing, the bike front fork has standard size, which can directly replace the old or damaged ones. 5.EASY INSTALLATION: Equipped with screws with standard thread, the bike front fork is easy to install and is not easy to loosen or fall off. Item Type: Bike Front Fork Material: Carbon Fiber Specification: 20in 406/451 Upper Tube Diameter: 28.6mm (1-1/8in) Bottom Diameter: Approx. 30mm / 1.2in Upper Pipe Length: Approx. 123mm / 4.8in Fork Shoulder Height: Approx. 4.0cm / 1.6in Fork Shoulder Width: Approx. 4.8cm / 1.9in Fork Opening: Approx. 74mm / 2.9in Fork Leg Length: Approx. 265mm / 10.4in Fork Leg Offset: Approx. 43mm / 1.7in Applicable Disc: For 20in 406 disc V brake (406 universal) For 20in 451 disc C brake 1 x Front Fork 2 x Screws