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

Track-Ready Viper 977 Summary

The Serpent 903012 Viper 977 is a race-oriented 1/8 scale nitro on-road kit built for precise setup and reliable performance. It focuses on adjustability and mechanical consistency to help competitive drivers extract lap time.

Aluminium Chassis and Balance Options

A 5mm 7075 T6 aluminium chassis forms the backbone, offering high stiffness with controlled weight. The symmetrical chassis layout helps predictable flex, and the ability to add up to three brass sliding weights gives clear tuning options for balance and traction.

Handling Package and Steering Geometry

The independent double wishbone suspension works with RCM shocks to provide a range of damping choices. Adjustable camber, caster and toe let you tailor tyre contact patches, while multiple Ackermann positions in the steering blocks let you trade turning speed for mid-corner stability.

Transmission and Clutch Details

The drivetrain features a 4WD belt-drive coupled to a Centax true motion clutch and a compact 2-speed SL8 gearbox for efficient power transfer. The setup provides consistent traction and controllable acceleration, with the rear solid axle and front one-way bearings assisting balance through corners.

Fuel Tank Design and Reliability

The 125cc slim-profile fuel tank reduces slosh and uses a labyrinth design to limit foaming, keeping a steady fuel feed during aggressive driving. Components are chosen to stand up to the wear of frequent track use.

Built for racers who enjoy setup and upgrade work, the Serpent 903012 Viper 977 offers a stable, tunable base that responds well to chassis and drivetrain changes.