The core of the RMX 4 GT features a dedicated 2.5 mm carbon fibre lower deck weighing only 37g (1.3 oz). Combining carbon fibre and aluminium components throughout the chassis ensures an ultra-lightweight yet rigid foundation. This minimalist design allows for faster directional response and precise weight transfer during high-angle drifting on technical tracks.

A dual vertical carbon upper deck layout provides maximum longitudinal strength while maintaining controlled lateral chassis flex. This design ensures the car remains stable under heavy acceleration while allowing the chassis to twist just enough to maintain grip during deep drift angles. It creates a predictable handling characteristic that helps drivers maintain a consistent line through complex corner sequences.

The aluminium motor mount offers a 4-step height adjustment system to precisely tune the centre of gravity. Drivers can raise or lower the motor to alter the roll centre and traction levels to suit specific track surfaces. Combined with flexible ESC mounting positions, the layout provides significant customisation to achieve either a high-grip or a more agile drift configuration.

Accessing the rear drivetrain is effortless thanks to a quick-release gearbox design. The differential can be removed or serviced in a matter of minutes without a complete teardown of the rear suspension. Fast maintenance efficiency ensures you spend more time on the track and less time on the workbench, making it a reliable choice for competitive racing environments.

Newly designed ATK V3 steering hubs are optimised to provide extreme steering angles at full lock. A 0-degree trail design delivers a fast initial turn-in response, while the wide throw allows for maximum counter-steer during high-speed slides. Enhanced Ackermann geometry ensures the front wheels maintain the ideal tracking path, preventing the front end from scrubbing or losing momentum.

Front and rear cantilever-style shock towers allow continuous adjustment of shock angle to fine-tune the suspension's leverage ratio. The kit includes high-end TDA aluminium Shocks paired with newly developed DK hard-series competition short springs. These components provide smooth, consistent damping performance, ensuring the chassis stays level and composed during aggressive transitions and weight shifts.

An innovative removable subframe design allows for quick rear suspension servicing and geometry changes. The kit includes standard THA adjustable rear lower arms with a 41 mm to 55 mm range to precisely set the rear track width and toe-in. The ability to remove the entire rear subassembly simplifies maintenance and lets you swap entire setups to match different track layouts quickly.

The 4-gear reverse-torque transmission is designed to push the rear tyres into the ground under acceleration for increased traction. Without needing additional parts, the gearbox can be converted into a 3-gear forward-torque layout for different driving feels. This flexibility allows you to adapt the motor's mechanical torque to suit either high-bite carpet or low-grip tile surfaces.

A minimalist carbon fibre front bulkhead significantly reduces front-end weight to improve the car's overall balance and turn-in agility. New front upper and lower suspension arms are paired with an aluminium upper arm mount offering three-step caster adjustment. Reducing weight at the extremities of the chassis minimises the polar moment of inertia, allowing for faster and more violent drift transitions.