Tamiya 42105 TRF501X World Championship Edition Race Kit  [42105]

Race-Tuned TRF501X: The Tamiya 42105 World Championship Edition

The Tamiya 42105 - 1/10 RC TRF501X World Championship Edition is a kit focused on competition-level balance and reliability. Built with Team TRF know-how, it targets off-road track performance where consistent handling is key.

Engineering Highlights

This special release is supplied as a build-it-yourself kit for modellers who appreciate setup work. The TRF501X includes dedicated option parts that fine-tune chassis behaviour. A refined ball differential boosts durability and feel, and aluminium caster blocks plus strengthened rear uprights improve chassis integrity under heavy loads.

Key Parts and Drive Layout

Notable fittings include heavy-duty steel ball connectors and Delrin damper pistons for controlled suspension movement. The drivetrain features an 18T centre pulley paired with a 37T ball diff pulley driving 369mm belts to provide efficient power delivery. The body shell is clear polycarbonate shaped to aid aerodynamic stability at race pace.

The Tamiya 42105 TRF501X World Championship Edition is aimed at competitive builders who prefer a tunable platform. Its reinforced components and drivetrain refinements make it a strong base for track setups.