Brand new high-speed ball-bearings produced particularly for XRAY. ID x OD x depth (mm) = 10x15x4. Group of 2 pieces. Top-quality professional ball-bearings for a super-free, super-smooth drivetrain. These highest quality ball-bearings are fitted with unique plastic covers, and so are degreased and lightly oiled with AeroShell Fluid 12 oil for maximum smoothness, endurance, greatest tolerance and maximum performance.
These ball-bearings have more (and bigger) balls in the cage compared to the regular ball-bearings, making them far more resilient under lots. The medial side covers are really easy to eliminate for quick and comfortable servicing. These ultra-high precision ball bearings are made to withstand all extremes on track under race conditions or even simply fun race. A "must have" product!
