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

Viper 977 Technical Overview

The Serpent 903012 Viper 977 is a competition-focused 1/8 nitro on-road kit designed to give experienced racers a trustworthy, tunable platform. It emphasises mechanical precision and repeatable setup adjustments for consistent lap times.

Base Plate and Weight Distribution

The chassis plate is manufactured from 5mm 7075 T6 aluminium to provide a stiff foundation while remaining lightweight. Its symmetric layout promotes even flex and the option to fit three sliding brass weights enables nuanced front-to-rear balance tuning.

Suspension Components and Geometry

Handling is delivered via independent double wishbones working with RCM shock absorbers to manage bumps and corner loads. Adjustable camber, caster and toe settings allow fine trimming of tyre contact, and multiple Ackermann positions let you tune steering characteristics for different track types.

Clutch, Gearbox and Drive System

The drivetrain uses a Centax true motion clutch and a compact 2-speed SL8 gearbox linked to a 4WD belt-drive system for smooth torque delivery. The rear solid axle and front one-way bearings contribute to predictable traction and corner behaviour.

Fuel Tank and Component Longevity

The slim 125cc fuel tank is built to reduce fuel movement, with an internal labyrinth to prevent foaming and keep a consistent feed under hard driving. Components throughout the kit are chosen for durability under racing conditions.

For competitive hobbyists the Serpent 903012 Viper 977 offers a solid, tunable chassis that responds well to setup changes and upgrades, making it a strong base for race preparation.