Amazing high-speed ball-bearings produced designed for XRAY. ID x OD x depth (mm) = 5x9x3. Group of 2 pieces. Top-quality professional ball-bearings for a super-free, super-smooth drivetrain. These best quality ball-bearings are fitted with exclusive synthetic covers, and so are degreased and very carefully oiled with AeroShell Fluid 12 oil for optimum smoothness, longevity, best threshold and maximum performance.
These ball-bearings have more (and larger) balls in the cage set alongside the regular ball-bearings, making them more resilient under lots. The medial side covers are actually easy to remove for fast and comfortable servicing. These ultra-high precision ball bearings are manufactured to withstand all extremes at track under competition conditions additionally just enjoyable rushing. A "must have really" device!
