Groundbreaking high-speed ball-bearings produced especially for XRAY XB808. Sealed with artificial seal from part enough reason for steel seal from other part. ID x OD x depth (mm) = 13x19x4. Group of 2 pieces. Top-quality expert ball-bearings for a super-free, super-smooth drivetrain. These best value ball-bearings are fitted with original synthetic covers, as they are often degreased and lightly packed with unique oil for maximum smoothness, longevity, most readily useful threshold and optimum performance.
These ball-bearings have significantly more (and larger) balls inside the cage set alongside the regular ball-bearings, making them more resilient under loads. Along side it covers are really easy to eradicate for fast and comfortable servicing. These ultra-high accuracy ball bearings are designed to withstand all extremes on course under racing conditions including merely fun rushing. A "must have" product!
