• Stainless steel locking hitch pin locks and tightens Allen 2" receiver Racks (works with models 530RR, 540RR, 550RR, 640RR, and 740RR)
• Solid brass locking cylinder and cylinder case.
• Internal "O" ring and water-tight cap protect locking mechanism.
• Includes 3 keys.
• Lifetime on workmanship and material

What's in the Box?
500L locking hitch pin and three keys

About Allen Bike Racks
In 1967, after a few years of working on the aerospace technology for the Apollo missions, Dick Allen was out of a job. Government cutbacks led Allen, a Harvard-trained physicist, to transform his garage hobby into a new industry. A cycling enthusiast, inventor, and family man, Allen had a personal need for a bike-carrying device. On weekends, he would take his sons and wife to Cape Cod or the White Mountains of New Hampshire. What proved difficult time and again was the transport of his family's bicycles. Rather than fight through inconvenience with twine and a dinged car, Allen sought an answer for himself as well as a market in which he foresaw major growth possibilities.

Always a pathfinder, Allen took to work in his Lincoln, Massachusetts garage in search of a more efficient way to transport bikes. Drafting designs during the day and constructing them throughout the night, he put together a model made of electrical conduit, metal strapping, and fire hose casings (for padding). At first, the Allens' tested the prototype on weekend excursions. Finding the first trunk-mounted rack to be a success, Dick started Allen Bike Racks. Dealer acceptance came quickly, and by 1971 Allen Bike Racks were sold nationally through a number of major bicycle distributors. Today, the company owns over three dozen patents and offers a versatile product line of bike racks while Dick's son Alex now owns and operates the business. What started out as a small garage run operation now operates three warehouses nationally, two factories abroad, and has products sold in more than a dozen countries around the world.