Fresh high-speed ball-bearings produced specifically for XRAY. ID x OD x depth (mm) = 5x10x4. Set of 2 pieces. Top-quality expert ball-bearings for a super-free, super-smooth drivetrain. These best quality ball-bearings are fitted with original rubber covers, and are degreased and gently oiled with AeroShell Fluid 12 oil for maximum smoothness, longevity, greatest tolerance and maximum performance.
These ball-bearings do have more (and bigger) balls in the cage compared to regular ball-bearings, making them more resilient under lots. The side covers are really simple to expel for fast and comfortable servicing. These ultra-high precision ball bearings are created to withstand all extremes within track under race conditions and even just fun racing. A "must have" product!
