High-speed ball-bearings manufactured specifically for XRAY. ID x OD x level (mm) = 6x12x4. Number of 2 pieces. Top-quality expert ball-bearings for a super-free, super-smooth drivetrain. These finest quality ball-bearings are fitted with exclusive plastic covers, and tend to be degreased and gently oiled with AeroShell Fluid 12 oil for optimum smoothness, longevity, greatest limit and optimum performance. These ball-bearings have more (and bigger) balls within the cage versus regular ball-bearings, making them far more resilient under lots. The medial part covers are really an easy task to remove for fast and comfortable servicing. These ultra-high precision ball bearings are made to withstand all extremes within track under battle conditions including simply enjoyable race. A "must have really" item!
