Material: full carbon fibre Fit wheels size : 20 inch Steerer tube Diameter: 1-1/8" (28.6mm)Finish : weight about 340g The forks front end distant is about 100mm Steerer tube lengh is about 400mm We ensure our product' quality for a long-term business. We would check and adjust every fork before shipping to ensure it’ precision Made of qulified carbon fiber , power strength with light weight