Frame Sliders (Crash Bungs)

Frame sliders, also called crash bungs, crash knobs or crash mushrooms, are hard plastic pucks, usually made of nylon or Delrin, mounted on bolts through the frame or engine mounts. In a tip-over or low-side, the slider touches the ground first and helps keep the fairing, frame, engine covers and levers off the tarmac.

They are mostly fitted to sports bikes and fully faired machines, where even a parking drop can crack expensive bodywork. Similar sliders are available for fork legs, swingarms, bar ends and engine covers.

Choose a kit designed for your model, as some require cutting the fairing. Tighten the long mounting bolts to the specified torque, since they often replace engine mount bolts. After a slide, replace worn pucks and check the bolts for bending. Sliders reduce damage but don't guarantee it in a high-speed crash.