TAMIYA F103GT Precision Graphite Rear Upper Deck F103GT-12/SG by 3Racing  [F103GT-12/SG]

Technical overview for F103GT graphite rear deck

This graphite rear upper deck plate is a precision aftermarket replacement intended for the TAMIYA F103GT platform and is identified by model F103GT-12/SG. The design maintains the original SSG locating geometry while using graphite to raise torsional stiffness in the rear chassis section, which affects dynamic load transfer on 1/10 GT cars.

Installation follows the factory procedure: remove the OEM rear deck, position the graphite plate on the stock locating points and secure using the existing fasteners. After assembly verify clearance at the motor pod and full range of rear suspension movement. No modifications to drive components are necessary for standard F103GT installations.

From a setup perspective increasing rear deck stiffness reduces chassis compliance and tends to stabilise corner exit and throttle-induced weight shift. This plate is best used as part of a measured setup program, adjusting rear damping rates and anti-roll bar settings incrementally to achieve the intended handling balance.

Use this plate when a predictable, firmer rear platform is required for controlled weight transfer and consistent lap-to-lap performance.