The Reverb Inc. fork braces are made of milled, tumble-polished billet aluminium and provide a precise and solid connection between the 33.4 mm fork sliders of K, XL and FX models from 1954-1972. These forks tend to twist, especially when cornering or braking. This problem gets even worse if you are using overlenght fork sliders or if you are riding without a front fender. This connection ensures that the fork sliders always remain parallel and are able to withstand the bending forces that occur. The two-piece design allows an easy installation without having to remove the fork from the bike.