Unique high-speed ball-bearings produced especially for XRAY. ID x OD x depth (mm) = 6x10x3. Few 2 pieces. Top-quality expert ball-bearings for a super-free, super-smooth drivetrain. These best value ball-bearings are fitted with exclusive artificial covers, and so are additionally degreased and carefully oiled with AeroShell Fluid 12 oil for maximum smoothness, longevity, best limit and optimum performance.
These ball-bearings do have more (and bigger) balls inside cage compared to the regular ball-bearings, making them more resilient under lots. The within covers are in fact quite simple to get rid of for fast and comfortable servicing. These ultra-high accuracy ball bearings are made to withstand all extremes within track under competition conditions and just enjoyable competition. A "must have" product!
