SRAM International keeps the wheels of commerce spinning as it makes and sells bicycle shifters, derailleurs, brakes, chains, pedals, power meters, and other cycling parts. Its components are used by bicycle manufacturers (some 65% of sales) and sold in the aftermarket to distributors or directly to high-end US bicycle retailers. Products are marketed under the SRAM (drivetrain systems), RockShox (suspension), Avid (brakes), Truvativ (cranks), and Zipp (wheelsets) brand names. The firm's products are sold worldwide (the US accounts for a mere 15%). SRAM International was founded in 1987 by president and CEO Stanley Day, Jr.