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

Serpent SER903813 Mounting screw pullyadaptor lightweigt 2-speed shaft
Price:
NZD$21.01
Brand:
Serpent
Model:
SER903813
Condition:
Brand New
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Upgrade Your Viper 990 GP with Serpent 903813

The Serpent 903813 lightweight mounting screw adapter is crafted for use with Viper 990 GP chassis. By cutting unsprung rotating mass at the 2-speed shaft, it helps the drivetrain respond quicker to throttle changes.

Why Choose a Lightweight Adapter

This adapter reduces the inertia that can slow gear engagement, giving smoother transitions and improved control under acceleration. Its precision fit supports consistent gearbox behaviour across runs.

Simple Swap-In Installation

Installation on Viper 990 GP (SER903020) is straightforward and suitable for anyone comfortable with basic RC maintenance. Keep fasteners at the recommended torque and check alignment after the first run.

Can I use this with aftermarket gearboxes?

It is built for the Viper 990 GP shaft geometry. Aftermarket gearboxes with identical shaft specs may work, but verify dimensions before fitting.

Will it change gear ratio or performance?

The adapter does not alter gear ratios. Its benefit is lower rotating mass, which can improve acceleration feel and shift smoothness rather than top speed.

Any maintenance after fitting?

Inspect the screw and adapter for secure fit and play after a few runs. Re-torque if needed and replace if you spot wear or damage.

Is professional installation recommended?

Most hobbyists can fit it themselves, but a professional setup check can help confirm alignment and torque settings for competitive use.

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