High-speed ball-bearings manufactured made for XRAY. ID x OD x level (mm) = 6x12x4. Volume of 2 pieces. Top-quality expert ball-bearings for a super-free, super-smooth drivetrain. These best value ball-bearings are fitted with exclusive synthetic covers, and are usually degreased and gently oiled with AeroShell Fluid 12 oil for maximum smoothness, longevity, best restriction and optimum performance. These ball-bearings have more (and larger) balls within the cage versus regular ball-bearings, making them more resilient under lots. The medial component covers are really a simple task to get rid of for fast and comfortable servicing. These ultra-high accuracy ball bearings are made to withstand all extremes within track under battle conditions including simply enjoyable battle. A "must have really" item!
