Serpent 903812 Race-Ready Pulley Adapter for Viper 990 GP  [SER903812]

Lightweight Pulley Upgrade for the Viper 990 GP

The Serpent 903812 Lightweight Pulley Adapter is made to enhance the Viper 990 GP 2-speed shaft performance. It reduces rotating mass to promote smoother engagement and sharper throttle response on track and practice sessions.

Advantages of the Serpent Pulley Adapter

Optimised for lower inertia without compromising strength, this adapter helps balance speed and control. Its direct compatibility with the Viper 990 GP means a straightforward swap for racers seeking measurable drivability gains.

Suited to Competitive and Hobby Use

From local meets to weekend testing, the Serpent 903812 Pulley Adapter delivers improved responsiveness under acceleration. The lighter component supports cleaner power delivery and a more agile feel at the rear wheels.