SRX8GT R GP SER600072 2-Speed Spring SER903728 Genuine Serpent Part  [SER903728]

Serpent SER903728 2-speed spring
Price:
£3.18
Brand:
Serpent
Model:
SER903728
Condition:
Brand New
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Restore Precise Shifting with Serpent SER903728

The Serpent SER903728 2-speed spring is supplied as a replacement part for the Viper 989 GP to restore positive gear shifts. It helps maintain the transmission's intended shift characteristics for competitive and casual use.

Fitment and Performance

Intended for use in Serpent Viper 989 GP and SRX8GT R GP SER600072 gearboxes, this spring ensures steady tension so shifts occur predictably under load. It is a sensible part to stock for routine maintenance and pre-event checks.

Service Advice

Install the new spring with the model switched off and consult the service manual for the correct removal procedure. After refit, run the gearbox by hand to confirm correct engagement and inspect surrounding parts for wear.

Yes, fitting a fresh SER903728 spring restores consistent tension and can eliminate unpredictable shift points caused by a worn spring.
Minor handling is fine, but if you track frequently or notice even small deformation it is best practice to replace the spring rather than risk degraded performance.
Inspect selector forks, dog teeth and bearings for wear when the gearbox is open; replacing these alongside the spring can avoid repeat stripdowns.
Include the spring in routine gearbox checks after every few race days or if you notice any change in shift feel; proactive swaps keep shifts predictable.

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