[quote="warp9.9":60iow1yy]your right TDragger as you drive the bike in the back part of the chock rotates up and captures the back of the wheel holding it secure. At Harbor frieght they also have one with rubber feet and a wider stance to use in your driveway. I never used them either but this year I am hauling more then one bike to Daytona so I went for extra safety cause I don't want any chances of the bikes shifting on the trailer.