The Serpent 803178 2-speed shaft is a practical upgrade for the 720 vintage range, manufactured from hardened spring steel to resist wear where parts meet. Its tougher construction reduces shaft flex and helps keep gear alignment steady during hard acceleration and braking.
Built to tolerate frequent track use, this shaft improves drivetrain stability and protects bearings from premature wear, cutting down on service intervals without changing your gearbox layout.
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