The Universal E-Track Adaptor Kit (UNIV-E TRACK) is designed to be used with either a Condor Pit-Stop/Trailer-Stop, (PS-1500) the CONDOR Trailer-Only model (SC-2000), the CONDOR Scooter Chock (SCC-4000) and the Condor Chopper Chock (CHCK-1500). The kit allows our chocks to quickly and securely attach to the E-Track on any trailer platform, whether the E-Track is above the floor, recessed, or flush-mounted. Now you can adjust the position of the chock anywhere along the E-Track for maximum flexibility in positioning a motorcycle, and the chock can be adjusted side-to-side between 27" and 43" wide.