New high-speed ball-bearings produced specially for XRAY. ID x OD x level (mm) = 8 x 14 x 4. pair of 2.
Top-quality expert ball-bearings for a super-free, super-smooth drivetrain. These best quality ball-bearings are fitted with unique synthetic covers, and tend to be often degreased and very carefully oiled with AeroShell Fluid 12 oil for maximum smoothness, longevity, best tolerance and optimum performance. These ball-bearings have more (and larger) balls to the cage when compared with regular ball-bearings, making them significantly more resilient under lots. The medial side covers are actually easy to eliminate for quick and comfortable servicing. These ultra-high precision ball bearings are made to withstand all extremes on track under battle conditions if you don't merely fun race. A "must have actually" item!
