Rmd girder front end
When used in higher rake applications the dampening affect may be reduced by side-loading stresses (pinch points) exerted on the tubes. Tube forks provide good dampening qualities for most applications where rake (angle from vertical) does not exceed 35 degrees. Inverted tube forks have been used on sport bikes for years. Both configurations essentially work the same way. Adjustable from around 3-7 degrees depending on where you bolt it up. This is similar to how the new RMD Billet girder is set-up. The forward-most holes kick out the rake a few degrees while the nearer ones lessen it. Conventional tube forks have the smaller tubes fixed to the triple trees, while inverted tube forks have the larger tubes mounted to the triple trees. Some girders have an adjustable feature which is really just a set of holes where you mount the side rocker-links on the trees. Tube forks are available in conventionalĀ (traditional) and invertedĀ configurations. Hydraulic fluid levels must be checked periodically to insure proper operation. Traditionally the rigid portion of the tubes are joined to the frame, via the triple trees, while the wheel axle is fastened to the active (live) forks. Internal springs and hydraulic fluid serve to dampen the movements of the tube forks to smooth out the ride, just as on an automobile, providing the active suspension for the front wheel. You can find Smiths front ends are available from Chrome Specialties 800.811.8904 for a local dealer and Denvers web site is. The smaller tube slides in and out of the slightly large tube that is sealed around it. Donnie Smith makes a quality girder front end among other as well as Denvers Choppers for a well build springer front end. Tube forks incorporate an internal shock and spring in one sealed unit.