Wheels Manufacturing BB30 Bottom Bracket Adaptor for Hollowtech II Cranks

Is the BB30 Adaptor Right for Your Shimano Cranks?

The Wheels Manufacturing BB30 Bottom Bracket Adaptor solves one of the most common frame-to-drivetrain compatibility headaches in cycling: running Shimano Hollowtech II cranks in a BB30 frame without introducing creaks or play. Machined from engineering-grade Delrin, the inserts press cleanly into the BB30 shell and provide a precise bore for a standard threaded bottom bracket, giving you the serviceability of a threaded interface in a press-fit frame. The Delrin construction dampens vibration at the junction point while maintaining dimensional stability through load and temperature changes that cause metal-on-metal interfaces to creak over time.

Installation is straightforward for any mechanic comfortable with press-fit bottom brackets: press in the Delrin inserts, thread in your threaded BB shell, and install your Hollowtech II crankset as normal. The adaptor is compatible with BB30 frames across road, gravel, and mountain platforms, covering the widest range of spindle width configurations in the format. Wheels Manufacturing has built their reputation on getting these small but critical drivetrain interfaces right, and this adaptor is one of their most proven solutions. If you have been living with a creaking BB30 frame or want to run a Shimano drivetrain in your press-fit build without compromise, this is the clean fix.