Serpent 903813 Lightweight 2-Speed Shaft Mounting Screw Adapter  [SER903813]

Serpent SER903813 Mounting screw pullyadaptor lightweigt 2-speed shaft
Price:
AUD$18.32
Brand:
Serpent
Model:
SER903813
Condition:
Brand New
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Fine Tune Your Viper 990 GP with Serpent 903813

The Serpent 903813 lightweight mounting screw adapter is tailored for the Viper 990 GP series to reduce rotating weight on the 2-speed shaft. This small change can improve how quickly the gearbox settles during throttle transitions.

Performance Benefits for Racing

With a focus on precision fit, the Serpent 903813 helps reduce shaft inertia and promotes smoother gear shifts. The result is improved throttle control and steadier drive characteristics through corners and straights.

Installation Notes

Compatible with Viper 990 GP (SER903020), the adapter is an easy upgrade during routine maintenance. Fit using proper torque specs and check gear mesh to ensure optimal operation after installation.

Will this help reduce drivetrain vibration?

Reducing rotating mass at the shaft can lower certain vibrations and help the gearbox run smoother, but balance and alignment of the whole drivetrain also matter.

Can I re-use my existing screws?

If your current screws are in good condition and match the adapter, they can be reused. Inspect for thread wear and replace if any damage is found.

Does it require shims or spacers?

Most installs do not need additional shims, but check lateral play and adjust spacers if the shaft alignment requires it.

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