New high-speed ball-bearings produced specifically for XRAY. ID x OD x thickness (mm) = 10x16x4. Pair 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 are degreased and gently oiled with AeroShell Fluid 12 oil for maximum smoothness, longevity, highest tolerance and maximum performance.
These ball-bearings have significantly more (and larger) balls inside the cage compared to the regular ball-bearings, making them significantly more resilient under lots. The medial side covers are easy to remove for fast and comfortable servicing. These ultra-high precision ball bearings are designed to withstand all extremes within track under racing conditions and sometimes even just fun race. A "must have" product!
