These swingarm protectors, for the Yamaha R25 '14-, MT-25 '15- and R3 '15- models fit into the rear spindle and provide added protection to the swingarm area and swingarm components. Easy to install, the sliders are held in place thanks to there connecting threaded spindle bar, connecting one side to the other ensuring the kit is secure in place. They help keep those core components found in/on 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. Please note: Paddock stand bobbins / Paddock stand (as seen in pictures) are NOT included but are available seperately!