Silicon Nitride ceramic bearings are 30% lighter than steel and 40% stronger. So finely balanced, they have an incredible maximum spin rating of 300,000 rpm under load. Each ball is over 1000X more round than the best steel bearing of any type, grade or benchmark.
At 25mph, the calculated energy saving from these alone is nearly 2 watts over traditional high precision steel bearings. A custom Teflon thermoplastic retainer physically separates and locates each individual ball within the bearing race for optimum performance and longevity. Further protection is provided by a custom-formulated 75% fill of barium-hydrocarbon ceramic specific grease. Double light contact seals provide a near friction free protective barrier against the elements. The bearing races themselves are a hybrid ceramic specific alloy finely ground and polished to a ABEC7 standard and cryogenically treated at -300 degrees Fahrenheit to refine the molecular structure.
These bearings are the absolutely highest grade and tolerance ever available in the cycling industry.
