Wheels Manufacturing was founded in 1988 by Dave and Cindy Batka in Boulder, Colorado, starting as a small machine shop making cog removal tools and chainring spacers. What began as a niche operation grew into one of cycling's most relied-upon parts suppliers, now based in Louisville, Colorado with a catalog of over 1,000 products. The company changed hands in 2019 and has continued expanding — most recently acquiring the Mirrycle and Incredibell brands. Visit Wheels Manufacturing's website for their full catalog and compatibility guides.

At RA Cycles, the Wheels Manufacturing selection centers on their bottom bracket lineup and derailleur hanger library. Bottom brackets cover the full range of modern shell standards — BB30, PF30, BB86/92, T47, BBRight, and 386EVO — in thread-together designs with angular contact or ABEC-3 bearings. The derailleur hanger selection spans over 40 frame-specific models covering road, gravel, and mountain frames from across the industry.

For complete drivetrain work, browse our broader bottom brackets and cranksets and chainrings collections. For frame-specific replacement parts, see frame-specific parts and derailleur hangers. The full bike components collection is the place to start if you're building up a drivetrain from scratch.