Brand new high-speed ball-bearings produced specifically for XRAY XB808. Sealed with plastic seal from one side along with metal seal off their side. ID x OD x thickness (mm) = 13x19x4. 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 so are degreased and gently full of special grease for maximum smoothness, endurance, greatest tolerance and maximum performance.
These ball-bearings have significantly more (and bigger) balls within the cage compared to the regular ball-bearings, making them significantly more resilient under loads. The side covers are easy to eliminate for fast and comfortable servicing. These ultra-high accuracy ball bearings are designed to withstand all extremes at the track under racing conditions or even simply fun racing. A "must have" item!
