A patented securing mechanism that supports your bike in an upright position on any flat surface or transport platform, accommodating either front or rear wheels from 15” to 22” (from 80 to 220 mm wide). Safe for solo operation to load or release your motorcycle. Trailer adapter kit allows easy mounting to trailer surface or truck bed (optional accessory with Pit Stop model). Chock features additional bracing for added stability and includes the trailer adapter kit. Use with a pair of tie-down straps when mounted on a trailer to secure the bike for transport (not included).