CXD 6806 LLB - ABEC-5, XD-15, Ceramic-Hybrid, Radial Bearing - 30 x 42 x 7mm
The ultimate upgrade
An Enduro Bearings exclusive, XD-15 Ceramic-Hybrid bearings combine corrosion-proof, cryogenically treated nitrogen steel races with Silicon Nitride Grade 3 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 3 Silicon Nitride ceramic balls for for increased contact area and improved performance and longevity. 90% fill Kluber NBU52 grease only runs better and smoother with time and is highly resistant to being washed out. Its engineered to stick to the balls and continually be pulled back into the ball path where it is needed.
The most impressive feature of these bearings is, unlike other bearings, they only get better with use. As the bearings wear-in, the balls actually make the races even smoother. So when compared to other ceramic-hybrid bearings on the market that claim speed and power advantages on day one, Enduro XD-15 bearings not only provide the same initial advantages on day one, but will get even faster and smoother with time and use, while the other ceramic-hybrid options will only get slower.
The most common use for this bearings as an upgrade replacement bearing for BB30 and BB386 Cranksets with 30mm spindles.