SINZ race fork are 100% 4130 Cr-mo with a post weld heat treatment to stiffen them up to make sure they stay true. Other features include wheel centering washers; laser cut dropouts, and a beautiful black finish with SINZ logos protected by clear coat finish.Weights20" X 1" 1.5lbs24" X 1" 1.75lbs20" X 1 1/8" 1.91lbs24" X 1 1/8" 2.1lbs