Brand new high-speed ball-bearings manufactured particularly for XRAY. ID x OD x thickness (mm) = 8x16x5. Group of 2 pieces. Top-quality expert ball-bearings for a super-free, super-smooth drivetrain. These best quality ball-bearings are fitted with unique plastic covers, and are usually degreased and gently full of unique grease for optimum smoothness, endurance, greatest threshold and maximum performance.
These ball-bearings have more (and bigger) balls within the cage compared to regular ball-bearings, making them a lot more resilient under lots. The medial side covers are really easy to eliminate for fast and comfortable servicing. These ultra-high precision ball bearings are made to withstand all extremes on track under race conditions if not simply fun racing. A "must have" product!
