Serpent 903012 Viper 977 1/8 Scale Nitro Touring Kit  [SER903012]

Viper 977 Overview for Track Tuning

The Serpent 903012 Viper 977 is a finely engineered 1/8 nitro on-road kit that focuses on adjustability and repeatable lap times. It is aimed at racers who prioritise setup options and mechanical precision over plug-and-play simplicity.

Chassis Build and Weight Control

The mainplate is cut from 5mm 7075 T6 aluminium to give a strong, stable base while keeping mass down. The symmetric layout provides predictable flex and the optional sliding brass weights allow adjustable mass distribution to suit different surfaces and grip levels.

Suspension and Steering Details

Suspension duties are handled by an independent double wishbone arrangement with RCM shocks for smooth compression and rebound. Adjustable camber, caster and toe settings help tune tyre contact, and the steering blocks offer several Ackermann setups to alter steering response.

Powertrain Configuration

Drive is routed through a 4WD belt-drive system paired with a Centax true motion clutch and a compact 2-speed SL8 gearbox, giving both strong launches and stable top-end behaviour. The rear solid axle with front one-way bearings helps maintain traction balance.

Fuel System and Durability Notes

The 125cc narrow fuel tank is engineered to keep fuel movement minimal, using a labyrinth design to limit foaming and ensure a steady supply under hard cornering. Components are selected for longevity under racing conditions.

If you enjoy detailed setup work, the Serpent 903012 Viper 977 delivers a durable, highly adjustable platform that responds to precise tuning for better lap consistency.