MST RMX 4 S PRO Chassis Kit

Performance & Chassis Tuning

• Torsion-Type Dual Vertical Deck: Improves longitudinal rigidity while maintaining optimal lateral flex for grip.
• Triple-Level Adjustable Motor Position: Allows fine-tuning of the chassis' center of gravity and weight balance.
• Dual-Position ESC Mount: Supports both high and low center of gravity (CG) installation options.
• 380 Motor Compatible: Perfect spot above the rear axle for lightweight 380-size motors.

Steering & Suspension

• All-New ATK V3 Knuckle Set: Optimized for large steering angles, featuring a 0° trail for fast initial response and a wide throw.
• New Steering Arm System: Features fine Ackermann adjustment and a built-in 3° caster angle to reduce steering pump.
• Floating Servo Mount: Prevents the servo from interfering with chassis flex during cornering.
• New Short Rear Suspension Arms: Enhances lateral weight transfer for improved stability and control.
• New Front Upper & Lower Arms: Features a simplified installation and dual-position caster adjustment.
• Bullhorn-Style Shock Towers: Allows for infinitely adjustable shock angles at both the front and rear.

Drivetrain & Maintenance

• Anti-Torque 4-Gear Transmission: Included as standard and easily convertible to a 3-gear layout for a torque-positive setup.
• Quick-Release Gearbox Design: Simplifies maintenance and allows for easy differential access.
• Innovative Rear Subframe: Enables quick and easy removal of the entire rear suspension system.
• Lightweight One-Piece Front Bulkhead: Ensures a simple and efficient installation.

Versatility & Construction

• Three Adjustable Wheelbase Options: 257mm, 266mm, and 275mm for versatile body shell compatibility.
• Lightweight Quick-Release Battery Mount: Supports both standard and low-profile "shorty" LiPo batteries.
• High-Quality Materials: All plastic components are constructed from glass-fiber reinforced nylon for optimal rigidity.

S PRO Version Exclusives

• TR56 Aluminum Oil Dampers: Paired with new Progressive DK Short Springs for superior handling.
• Gear Differential: Included as standard for consistent performance.
• Servo Saver Damper: Provides advanced protection for extended servo life.

• Scale: 1/10
• Type: MR (Mid-Rear) Drift Car Kit
• Wheelbase: Adjustable (257mm / 266mm / 275mm)
• Track Width: 182mm (Front) / 172mm (Rear)
• Drive Mode: MR (Mid-Rear)
• Caster: Adjustable (5.5° / 7°)
• Camber: 9.1°
• Bearings: Full Ball Bearing Set
• Dampers: TR56 Aluminum Hydraulic Damper Set (Included)

• MST (#532217) RMX 4 S PRO RWD Drift Chassis Kit (1 Set)
• Stickers
• Instruction