ROTOR BB Track BSA Steel. Our ultra-stiff steel BSA track bottom bracket will respond to whatever wattage you stomp out, whether it’s fleeing sirens or preparing for the bell lap.

The BSA track bottom bracket is the “yes” component to “Is that compatible with my track frame?”

Featuring Enduro XD-15 Ceramic bearings for ultra efficiency and a lifetime bearing warranty.

An Enduro Bearings exclusive, our XD15 Ceramic-Hybrid bearings combine corrosion-proof, cryogenically treated nitrogen steel races with Silicon Nitride Grade 5 ceramic balls in a proprietary process that results in the ultimate high performance bearing setup. The deep-groove design raceways allow for maximum sized Grade 5 Silicon Nitride ceramic balls for for increased contact area and improved performance and longevity. Dual-lip labyrinth (LLB) seals protect from the elements, and contain the 90% fill Kluber NBU52 grease that runs smoother with time and is highly resistant to being washed out.

The most impressive feature of XD15 ceramic-hybrid bearings is, unlike other bearings, they only get better with time and use. As the bearings wear-in, the super-hard ceramic balls actually make the XD15 races even smoother. So, when compared to other ceramic-hybrid bearings on the market that claim speed and power advantages on day one, Enduro XD15 bearings not only provide the same initial advantages on day one, but will become faster and smoother with time and use, while the other ceramic-hybrid options will only get slower. We are so confident in the performance of XD15 Ceramic-Hybrid bearings that they carry a limited lifetime warranty against wear and corrosion.

Details

ROTOR BOTTOM BRACKET COMPATIBILITY GUIDE