Groundbreaking high-speed ball-bearings produced designed for XRAY. ID x OD x level (mm) = 6x13x5. Band of 2 pieces. Top-quality expert ball-bearings for a super-free, super-smooth drivetrain. These best quality ball-bearings are fitted with exclusive artificial covers, as they are degreased and carefully oiled with AeroShell Fluid 12 oil for optimum smoothness, endurance, greatest limit and maximum performance.
These ball-bearings do have more (and larger) balls in the cage set alongside the regular ball-bearings, making them much more resilient under lots. The medial component covers are now an easy task to get rid of for fast and comfortable servicing. These ultra-high precision ball bearings are made to withstand all extremes through the entire track under competition conditions or just enjoyable rushing. A "must have actually" item!
