FSA Orbit C40 integrated head assembly designed for 1 1/8" to 1.5" forks. The bearings have outer diameters of 41.8 mm and 51.9 mm and fit head tubes with inner diameters of 42 mm and 52 mm. The top height is 10 mm, the head assembly comes complete with hedgehog, cap, screw and bottom cone. Weight is 82 g.... more