Groundbreaking high-speed ball-bearings produced specifically for XRAY XB808. Sealed with artificial seal from part sufficient reason behind metal seal off their part. ID x OD x level (mm) = 13x19x4. Number of 2 pieces. Top-quality specialist ball-bearings for a super-free, super-smooth drivetrain. These cost effective ball-bearings are fitted with unique synthetic covers, since they are usually degreased and gently packed with unique oil for maximum smoothness, longevity, best threshold and maximum performance.
These ball-bearings have significantly more (and bigger) balls inside the cage compared to the regular ball-bearings, making them more resilient under loads. The medial side covers are really simple to eliminate for fast and comfortable servicing. These ultra-high precision ball bearings are designed to withstand all extremes on course under race conditions including simply fun rushing. A "must have actually" item!
