The Black Widow Aluminum Dirt Bike Carrier with Wheel Chock makes it easier to load up your bike by guiding the front wheel into a steel chock to keep the bike stable while tying it down, and during transport. It fits dirt bikes with wheels up to 5.5” wide and attaches to Class III or IV 2” hitch receivers. Much like the AMC-400, this carrier features a lightweight aluminum frame construction on a steel hitch tube, and a self-storing ramp that installs on the right side of the carrier for loading and unloading. Additional tie-down points offer more places to secure your bike for better peace of mind while on the road. A spacer bar adapter accommodates the smaller tires of youth bikes, and an anti-rattle device reduces noise and movement while you’re on the go.