The Serpent SER401937 DJC sleeve BB axle is a precision replacement made for the Medius X20 '21 MID 1/10 EP series, designed to boost drivetrain durability and maintain reliable performance during competitive use. It is aimed at racers and serious hobbyists who want consistent mechanical behaviour from their setup.
Made to match the Medius X20 '21 MID 1/10 EP models, the SER401937 DJC sleeve BB axle offers direct fitment and preserves factory geometry. It integrates with stock layouts and most common tuning options without extensive modification.
Installing the SER401937 DJC sleeve BB axle improves drivetrain smoothness and can stabilise handling by lowering internal friction. The sleeve bearing design reduces contact wear, helping extend service intervals and keep performance steady over time.
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