Founded by Brock Davidson in 1983 from his basement apartment, Brock’s Performance designs and builds performance components for sport motorcycles, with its best-known work centered on race-proven exhaust systems. The company’s testing-driven approach comes from Brock’s own motorcycle racing background, and its products have been associated with land-speed records and drag-racing wins. Brock’s Performance also supplies performance upgrades and diagnostic tools for platforms such as the Suzuki Hayabusa and Kawasaki ZX-14R.
HMF RacingFounded in Cleveland in 1997, HMF Racing builds performance exhaust systems and fabricated equipment for ATVs, UTVs and motorcycles. The company grew from Hans Luenger’s motorcycle and racing work into an off-road specialist, with competition experience that includes class wins at the Baja 1000 in 2005 and 2018. HMF also draws on its metal-fabrication roots to make protective equipment for more than 20 off-road vehicle platforms.BEREA, OH
Zipper’s Performance ProductsBorn from a short-track engine shop in 1978, Zipper’s Performance Products manufactures and distributes aftermarket performance parts for Harley-Davidson motorcycles while providing in-house engine-component machining from its Elkridge, Maryland facility. Racing remains central to the independently owned company, whose work includes CNC cylinder-head development and machine services shaped by competition experience. Zipper’s has served the performance motorcycle industry since establishing its first commercial location in 1981 and ships its products to customers worldwide.ELKRIDGE, MD
Performance MachineBorn from Perry Sands’ small Paramount, California machine shop in 1970, Performance Machine has spent more than five decades turning a passion for motorcycles into custom aftermarket components. The company now carries that history into an in-house operation where it designs, tests, and manufactures parts for riders building distinctive motorcycles, including its signature Contrast Cut wheels.HAMILTON, OH
Montgomery MotorsportsKnown for its carbon-fiber work in motorcycle racing circles, Montgomery Motorsports produces custom and made-to-order components for riders building performance-focused motorcycles. Its work is aimed especially at street, strip and grudge-racing applications, with fitments developed for specific bikes such as the Suzuki Hayabusa.CLAYTON, OH