Serpent 500353 SRX2 21T Top-shaft Stock Class Upgrade  [SER500353]

Precision Top-shaft Upgrade for SRX2

The Serpent 500353 Top-shaft 21T is a purpose-made part to sharpen the performance of Spyder SRX2 cars competing in stock-class events. Built for steady power delivery and extended service life, this top-shaft helps reduce drivetrain wear under sustained race conditions.

Built to Improve Power Transfer

Matched to the SRX2 drivetrain layout, the 21T top-shaft improves gear engagement and lowers friction points. Its robust construction resists deformation and keeps drivetrain behaviour predictable across a range of track surfaces.

Straightforward Fit with Adaptor

This top-shaft installs directly into the SRX2 chassis and is suitable as either a replacement or an upgrade. The included adaptor makes integration with existing parts quick and keeps setup time to a minimum.