These swingarm protectors, for the Triumph Thruxton 1200 '16-, Thruxton 1200R '16-, Triumph Street Twin '16-, Speed Twin 1200 '19-'21, Scrambler 1200 XC/XE '19- & Speed Twin 900 '22-, Bonneville bobber '21- fit into the the rear spindle and expand into place for a snug fit protecting the swingarm and swingarm components from damage in the event of a crash, drop or slide. Held in place thanks to there expanding design means installation is a breeze taking only minutes. They help keep those core components found on and around the swingarm area such as the rear brake caliper, disc, Rear sprocket and swingarm lifted up off the ground, out of harms way in the event of a crash, drop or slide.