DG Performance 55-6001 - Alloy Series Front Bumper - Aluminum fits Suzuki QuadRacer 500 (1987 - 1990) DG Perfomance's classic bumper. The Alloy Series Front Bumper is made from 1-1/4 inch diameter 6061 aluminum alloy. Heli-arc welded and ball burnished. Protects against rocks and other flying debris. Proudly hand fabricated in the U.S.A.