High-speed ball-bearings produced especially for XRAY with low radial play. ID x OD x level (mm) = 6x10x3. Range 2 pieces. Top-quality expert ball-bearings for a super-free, super-smooth drivetrain. These best quality ball-bearings are fitted with original plastic covers, and are usually additionally degreased and carefully oiled with AeroShell Fluid 12 oil for optimum smoothness, longevity, most readily useful restriction and maximum performance. These ball-bearings do have more (and bigger) balls inside the cage set alongside the regular ball-bearings, making them way more resilient under lots. The within covers are actually an easy task to eliminate for fast and comfortable servicing. These ultra-high accuracy ball bearings are created to withstand all extremes on program under battle conditions and/or merely enjoyable rushing.