Feature: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.Specification:Item Type: Bike Front ForkMaterial: Carbon FiberSpecification: 20in 406/451Upper Tube Diameter: 28.6mm (1-1/8in)Bottom Diameter: Approx. 30mm / 1.2inUpper Pipe Length: Approx. 123mm / 4.8inFork Shoulder Height: Approx. 4.0cm / 1.6inFork Shoulder Width: Approx. 4.8cm / 1.9inFork Opening: Approx. 74mm / 2.9inFork Leg Length: Approx. 265mm / 10.4inFork Leg Offset: Approx. 43mm / 1.7inApplicable Disc: For 20in 406 disc V brake (406 universal)For 20in 451 disc C brake.Package List:1 x Front Fork2 x Screws