Groundbreaking high-speed ball-bearings produced specially for XRAY. ID x OD x depth (mm) = 6x13x5. Band of 2 pieces. Top-quality specialist ball-bearings for a super-free, super-smooth drivetrain. These highest quality ball-bearings are fitted with original plastic covers, as they are degreased and gently oiled with AeroShell Fluid 12 oil for maximum smoothness, long life, highest threshold and optimum performance.
These ball-bearings do have more (and bigger) balls into the cage set alongside the regular ball-bearings, making them significantly more resilient under lots. The medial part covers are actually an easy task to eliminate for quick and comfortable servicing. These ultra-high accuracy ball bearings are created to withstand all extremes during the track under race conditions or just fun racing. A "must have" item!
