Wheels Manufacturing
Wheels Manufacturing is an American machining company founded in 1988 by Dave and Cindy Batka and based in Louisville, Colorado. It specialises in bottom brackets, bottom bracket adapters and replacement derailleur hangers, as well as bearings, spacers and workshop tools. Its bottom bracket range covers most current frame standards, including BSA threaded, T47, BB86/92, BB30, PF30 and BBright, and the catalogue lists several hundred hanger patterns for frames from numerous brands.