Vortex 520 Steel Rear Sprocket 50 Tooth Black for KTM 400 EXC 1997

For more than 15 years, U.S.-based Vortex Racing continues to manufacture, market and sell top-quality motorcycle racing components for Motocross, Supercross, Road Racing, Flat Track Racing and Minibikes. Owned and operated by motorcycle racers and enthusiasts, Vortex focuses on absolute quality. Each of Vortex's race components is made to the tightest tolerances with the best quality materials in the industry. Vortex tests on the track with direct feedback from top professional race teams worldwide.