The Black Widow single 72in by 14in arched motocross ramp runner is designed for loading MX dirt bikes motocross bikes and light street bikes into pickup trucks or onto trailer beds. Each motocross ramp is arched for maximum engine and tailpipe clearance and features raised side rails to help keep wheels aligned and on track. Includes a full width attaching lip and a tapered approach foot for a smooth transition on and off the ramp. Made with heavy-duty all-aluminum construction built to last.