Coming from Avid is their new line of clutch bearings. Clutch temperatures easily reach temperatures three times more than that of a wheel bearing and so they are specifically designed for use in clutches to withstand the high heat and loads. Balls are 20 percent larger than Avid’s standard bearing line and when combined with the deeper grooves in the races, racers get a ton more surface area to distribute the load. Grooves are made from 52100 and polished to a higher level of smoothness to keep friction down when at higher loads. Cages are made from nylon instead of steel so that during high heat expansion situations there is no chance of metal to metal rubbing which results in less drag, and better strength. The bragging are available as 5x10x4mm, 5x11x4mm and 5x13x4mm metal-shielded variants.