Constructed of heavy-duty machined steel, aluminum, and high-density nylon, R&G frame sliders provide maximum protection and high quality fit and finish. R&G "Aero" sliders have an aerodynamic teardrop shape for a more streamlined look than traditional cylindrical slider pucks.
This slider was designed to be frame mounted.
The protector itself is machined from High Density Polyethylene (HDPE) chosen because as it wears it actually helps to slow a sliding bike. The bolts used are also de-embrittled steel; working as a shock absorber to bend instead of snapping or staying rigid - which could twist the mounting point.