Brand new high-speed ball-bearings manufactured particularly for XRAY. ID x OD x thickness (mm) = 10x15x4. Group of 2 pieces. Top-quality professional ball-bearings for a super-free, super-smooth drivetrain. These highest quality ball-bearings are fitted with special rubber covers, and they are degreased and lightly oiled with AeroShell Fluid 12 oil for optimum smoothness, longevity, greatest tolerance and maximum performance.
These ball-bearings have more (and larger) balls inside the cage versus regular ball-bearings, making them more resilient under lots. The medial side covers are easy to eliminate for quick and comfortable servicing. These ultra-high accuracy ball bearings are made to withstand all extremes at track under racing conditions if not simply fun race. A "must have" item!
