The Serpent 402040 Solid Axle is a practical upgrade for X20 '23 cars that want firmer traction and reduced diff attention between heats. By replacing the factory differential, the solid axle gives a direct connection between motor and wheels for steadier power delivery.
Choosing a solid axle removes the differential slip so both wheels share torque equally. That tends to improve traction on grippy tracks and gives more consistent behaviour through mid and high speed corners.
This solid axle is made for straightforward installation on the X20 '23 platform, so hobbyists can complete the changeover with common tools and minimal fuss.
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