Fresh high-speed ball-bearings produced particularly for XRAY. ID x OD x level (mm) = 8x14x4. Few 2 pieces. Top-quality expert ball-bearings for a super-free, super-smooth drivetrain. These finest quality ball-bearings are fitted with unique plastic covers, and therefore are also usually degreased and very carefully filled with special oil for maximum smoothness, longevity, greatest tolerance and optimum performance.
These ball-bearings have significantly more (and bigger) balls in the cage than the regular ball-bearings, making them more resilient under loads. The medial side covers are really very easy to eliminate for quick and comfortable servicing. These ultra-high accuracy ball bearings are made to withstand all extremes at track under battle conditions or merely fun race. A "must have actually" item!
