The Fast Forward Profile Design Seatpost is made out of coldforged 6061T6 aluminum. Doublebutted, 40mm forward position Coldforged 6061T6 aluminum Effectively changes a 73 degree seat tube angle frame to 78 degree Moves rider forward up to 38mm Forged 6061T6 aluminum construction Seatpost Diameter 27.2 mm Length 40 mm Color Black Seatpost Type Rigid Clamp Style Std Rails Offset 40 mm Max Height 195 mm Minimum Height 100 m