Don’t sacrifice vital fractions of times on battle track. Ensure your Mini 4WD car operates since near maximum effectiveness as long as you're able with the low-friction artificial bearings maybe many clearly choice elements set kit.
• Low-Friction 620 plastic Bearings x5
• Low-Friction 520 synthetic Bearings x2
• 620 size elements is applied to hex shaft axles, while 520 size elements works extremely well in Mini 4WD PRO automobile countertop gears.
• appropriate for Mini 4WD and Mini 4WD PRO vehicles.