Serpent 903022 - Viper 990R 1/8 GP Racing Kit Club Ready  [SER903022]

Viper 990R Technical Summary

The Serpent Viper 990R refines key aspects of the 990 EVO platform to deliver improved handling and easier servicing for club and championship racing. Notable revisions include a redesigned chassis, a reconfigured fuel tank to allow extra battery clearance, and reinforced rear bulkheads.

Structural Changes and Handling Impact

Stiffening the rear chassis area and removing unnecessary cuts helps produce cleaner rotation and steadier handling. The reworked fuel tank layout provides space for larger batteries while remaining easy to install. Updated rear bulkheads and anti-roll bar mounts simplify alignment and repairs.

Transmission and Chassis Interaction

The 2-speed gearbox features a one-piece shaft for robust performance and an extra groove for secure bearing location. The bumper accommodates carbon stiffeners and body supports for fine tuning of stiffness. Front upper arm bushings increase caster precision and side stiffeners reduce unwanted twist.

Materials, Tuning and Serviceability

The 5mm 7075 T6 aluminum chassis plate delivers a controlled flex profile with balanced weight distribution. The front anti-roll bar is easy to adjust and the pivot ball link system streamlines suspension setup. The kit includes durable wishbones, shock mount plates, and pivot pin inserts for detailed camber and caster tuning.