If you’ve ever had a true BB30 bike, where the bearings are pressed into the frames without any BB cups, then you know why this matters. Those frames require absolute precision in their molding (for carbon) or machining (metal bikes), but also require a clip to hold the bearings in. And every time you replace the bearings, which is needed far more often than with other BB standards, you end up removing material whether you wanted to or not. That means things move out of alignment, bearings can creak, and drag happens. Here’s how they did it…
They took a standard BB30 6806 bearing, which has a 42mm outside diameter, and reengineered the outer race to have a 40.5mm OD, which lets it fit inside their sleeve. That lets them bring their creak-free, perfectly aligned design to a frame design that’s plagued with reliability and tolerance issues. But it keeps the 30mm inside diameter, so you can still run your BB30 cranks.
The other improvement is the inner sleeve bushing between the bearings. This prevents any preload wave washers or out-of-tolerance frame widths from stressing the bearings.
Retail is $150 for steel ABEC7 bearings, and $205 for ceramic hybrid bearings with lifetime warranty. Available now. They also offer this model with a direct fit for 24mm Shimano, Campy’s UltraTorque and SRAM GXP.