Wheels Manufacturing BB30A Outboard Angular Contact Bottom Bracket Bearings Upgrade your bike's performance with the Wheels Manufacturing BB30A Outboard Angular Contact Bottom Bracket Bearings. These bearings are crafted to provide a stable and smooth ride, ensuring your bottom bracket stays secure in the frame. Key Features Threaded machined aluminium cups keep the bottom bracket stable, enhancing bearing life and making maintenance easier. Experience a quieter ride with no creaking, smoother operation, and quick bearing replacement. Designed for 24mm/22mm spindle diameter cranks (SRAM/Truvativ GXP) in BB30A frames (42mm ID, 73mm wide asymmetrical BB shell) without adaptors. The Wheels Manufacturing BB30A Outboard Angular Contact Bottom Bracket Bearings are perfect for cyclists looking to improve their bike's efficiency and longevity. Enjoy a hassle-free installation and a more enjoyable ride.