These hand built bearings are specially developed for off-road performance. The bearings offer extreme durability and high performance efficiency and are developed specifically for DUB 28.99 cranks. 

These bottom brackets are equipped with coated bearings. The coated bearings utilize the highest quality CeramicSpeed ceramic balls, running on hardened-steel races with a 3-micron thick metallic coating making the races corrosion resistant, harder and smoother, increasing service life and reducing friction. 

This product has a unique design specifically for SRAM DUB 28.99 cranks. With native fit frame interface and no plastic adapters or excess spacers. This design features a custom integrated dustcover for maximum durability. 

The maintenance of your CeramicSpeed Bottom Bracket is very important. As a general rule, when riding off-road, we recommend servicing your bottom bracket after 1-3.000 km or at least once every year.

Bottom Bracket Compatibility Matrix

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