Tamiya 84031 - 1/10 F103RM Formula Racing Chassis Kit  [84031]

Tamiya 84031 - 1/10 RC F103RM (W/ T-Body) - F103
Price:
£119.39
Brand:
Tamiya
Model:
84031
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alt="Tamiya 84031 - 1/10 RC F103RM (W/ T-Body) - F103" title="Tamiya 84031 - 1/10 RC F103RM (W/ T-Body) - F103"
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About the Tamiya F103RM Formula Chassis

The Tamiya 84031 - 1/10 RC F103RM is aimed at hobbyists seeking a tunable formula car platform. It combines classic formula proportions with modern components to help achieve consistent lap times.

Efficient Drivetrain and Ride Height Adjustment

The 53248 Formula Lightweight Diff Joint Set lowers rotational mass for quicker response, and the 53257 Formula Height Adjustable Gear Case lets you set ride height to suit tyre choice and surface grip.

Improved Rear Control and Reduced Chatter

The 53273 Formula Car Rear Suspension Ball Mount Set replaces O-ring supports with ball mounts to reduce vibration and promote smoother rolling. The setup pairs a front kingpin coil spring with a rear T-bar and friction plate plus coil spring for stable balance.

Kit Scope and Recommended Additions

Included are full bearings and a standard ball differential to ensure reliable power flow. Servo, R/C system, ESC, motor, 7.2V battery and charger must be provided separately. The RM body type is supplied without markings so you can add your own livery.

Specifications

  • Scale: 1/10
  • Chassis Type: F103RM
  • Suspension: Front kingpin coil spring, rear T-bar with friction plate and coil spring
  • Differential: Standard ball differential
  • Bearings: Full set included
  • Body: RM type (markings not included)
  • Required: Servo, R/C system, ESC, motor, 7.2V battery, charger

The Tamiya F103RM is well suited to enthusiasts who want to tune geometry, experiment with drivetrain parts and develop consistent handling on sealed circuits.

What should I check before first run?

Ensure bearings are greased and rotate freely, verify diff build and oiling, and confirm the adjustable gear case is set to a sensible starting ride height for your tyres.

How does the rear ball mount set change feel?

Switching to the 53273 ball mount set reduces lateral vibration and gives a smoother roll, which helps with corner exit traction and driver confidence.

Is this kit race legal in club classes?

Many club classes allow this style of formula chassis but check local rules on body markings, motor limits and battery specifications before racing.

What upgrade path do owners usually take?

Owners often upgrade to higher precision bearings, fine-pitch gear sets, and aluminium suspension parts to reduce flex and sharpen handling precision.

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