For hobbyists aiming to sharpen the behaviour of their Medius X20 '21 MID, the Serpent SER401939 CVD BB driveshaft set is a practical performance upgrade. It focuses on improved handling and tougher drivetrain components to help the car stay consistent lap after lap.
This CVD BB driveshaft set is matched to the Medius X20 '21 MID chassis to ensure clean integration. The design improves power transfer so you get crisper throttle response and steadier acceleration during race situations.
Made from quality materials with a ball bearing interface, the driveshafts reduce friction and wear under load. That reliability matters when you are running repeated sessions or pushing for consistent lap times.
Installation is simple with common RC tools, making this an accessible upgrade for experienced tuners and those new to chassis improvements. It is intended specifically for the Medius X20 '21 MID platform to ensure correct fit and performance.
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