The XRAY 941319 high-speed ball bearings, sized at 13x19x4mm, arrive as a matched two-pack to improve drivetrain efficiency and reduce unwanted drag. Their precision construction helps keep rotating parts running truer for longer.
These bearings incorporate a denser ball configuration in the cage to spread loads more evenly, keeping operation steady under cornering and acceleration. The rubber side seals block grit and allow simple access for maintenance when needed.
Light factory grease provides immediate smoothness and helps limit wear between services, suitable for both competitive laps and backyard practice. The design balances durability with low rolling resistance for high-speed use.
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