These swingarm protectors are suitable for the S1000RR, HP4 and S1000R (with the larger internal spindle diameters of 16mm and 24mm). They fit to the rear spindle and provide added protection to the swingarm area. Easy to install thanks to their expanding design, they help keep those core components found in the swingarm area such as the rear brake caliper, disc, Rear sprocket and swingarm lifted up off the ground and out of harms way in the event of a crash.