Tamiya 42389 1/10 TRF104 RC Chassis Kit

Dive into the world of Formula 1 RC with the new Tamiya TRF104 in 1/10 scale 

Designed to anticipate future developments in the category, this high-performance chassis takes the DNA of the TRF103 and improves it thanks to a redesigned front suspension , a new rear suspension and a central location of the RC equipment . 

Compatible with LF1100 6.6V and Li-Po packs , the TRF104 gives you remarkable handling, balance and stability. 

Experience a driving experience that's even closer to reality, with the reliability and build quality of  Tamiya that the TRF series is renowned for.

The Tamiya TRF104 (Ref 42389 ) marks the revival of radio-controlled Formula 1. Seven years after the TRF103, this chassis benefits from fully improved suspensions, optimized architecture and ingenious positioning of the servo and battery pack for ideal balance . Designed for brushless or carbon motors, it meets the expectations of demanding F1 RC enthusiasts.

The Tamiya TRF104 (Ref 42389 ) is aimed at F1 RC enthusiasts looking for an ultra-adjustable competition chassis , ready to take on the challenges of the upcoming regulations. Its innovative suspension , its thoughtful design for RC equipment and its compatibility with brushless or carbon motors make it the ideal platform to push your limits on the track. Assemble, adjust and drive your new radio-controlled Formula 1 with Tamiya precision and quality!

TRF104 chassis: high performance and modularity

• 1/10 scale : Length 325 mm (excluding ailerons), width 169 mm (front axle without wheels), height 46.5 mm (without body supports).
  
• Increased compatibility with LF1100 6.6V and Li-Po packs , thanks to a new chassis design.
  
• Laying steering servo , moved approximately 30mm rearward for a lower center of gravity.

Improved front suspension

• Plastic upper triangles and carbon fiber lower triangles (2.5mm) with track width adjustments.
  
• Adjustable camber angle from +1 to -3 degrees and caster angle at 6, 9 or 12 degrees, to precisely adjust the behavior on the track.
  
• Wide compatibility with Formula 1 RC wheels (different offsets possible).

Redesigned rear suspension

• Abandonment of the T-bar in favor of ball joints positioned at the front and rear of the engine mount .
  
• Optimized roll center for precise roll control using roll dampers and friction grease.
  
• FRP suspension plate and TRF shock absorber managing vehicle pitch.

RC Equipment Layout

• Centralized pack , receiver and servo for better weight distribution, avoiding loss of grip at the rear.
  
• Square bracket included for mounting Li-Po batteries (open or international regulations).
  
• Designed for easy access during adjustments and maintenance.

Engine mount and settings

• Engine mount allowing ground clearance to be adjusted to 5 positions (0.8 mm steps).
  
• Two wheelbase choices with a 2.5mm difference to adapt the chassis to the circuits.
  
• Aluminum plate provided for mounting a brushless motor or a carbon motor.

Steering and rear differential

• Variable geometry steering system : four types of adjustment possible on the linkage and the Ackerman pad for direct or more flexible steering .
  
• Rear differential identical to that of the TRF103, with carbon fiber axle combining lightness and robustness, perfectly suited to rubber tires.

Rear wing attachment

• Carbon fiber plate (2 mm) connecting the spoiler to the engine mount for a solid rear suspension with the wing.
  
• Independent aileron option (with aluminum servo mounts ref. 53596, sold separately) for stable attitude even if the rear suspension moves.

Ball bearings and finishes

• Sealed ball bearings included: 1060 shielded x2, 1050 x4, 1150 x1, 1280 x1.
  
• Body , spoilers , engine , rims , tires and RC equipment sold separately, giving you free rein to your customization.