Tamiya 42384 TRF421 Track-Tuned Touring Chassis Kit  [42384]

Meet the Tamiya 42384 TRF421 Touring Chassis

The Tamiya 42384 TRF421 chassis kit represents a step up for 1/10 touring car enthusiasts. Engineered with care for racers who value setup control, it blends stability, adjustability, and predictable handling. The project spanned two and a half years and brings targeted improvements for circuit performance.

Drivetrain and Suspension Highlights

The drivetrain layout emphasises steady torque transfer. A front direct coupling works with a rear oil-filled gear differential to keep traction consistent under power. Equal-length belts help control pitch, while the refreshed suspension uses longer A-arms compared with the TRF420X to improve roll balance and steering accuracy.

Chassis Details That Aid Cornering

Beyond raw speed, the TRF421 focuses on balance and response. Options for a single-piece or split upper deck allow drivers to change chassis flex characteristics. A lowered lower deck reduces clearance for improved cornering lines, and shorter dampers help lower the centre of gravity for sharper turn-in.

Setup Versatility and Battery Mounting

Fine adjustment options for camber, toe, and caster support a wide range of track conditions. The quick-plate battery tray accepts shorty packs for secure mounting without tape, making battery swaps faster during race days.

The Tamiya 42384 TRF421 chassis kit suits dedicated hobbyists and racers who want precise handling and adaptable geometry. Its design supports detailed tuning for different track surfaces.