Tamiya 18704 JR Mini 4WD REV Shadow Shark Track Tuner AR Chassis  [18704]

Tamiya 18704 - JR Mini 4WD REV Shadow Shark drive (AR chassis)
Price:
AUD$16.37
Brand:
Tamiya
Model:
18704
GTIN:
4950344187041
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Shadow Shark Product Summary

The Tamiya 18704 JR Mini 4WD REV Shadow Shark pairs a Formula inspired exterior with the AR chassis to focus on low drag and accessible tuning. The kit gives modders a solid base for performance upgrades and cosmetic finishing.

Shape and Aerodynamics

Styled after contemporary single seat racers, the Shadow Shark has a tall nose intake and a dorsal fin to stabilise airflow. The side pontoons and intake pods are crafted to direct air where it helps cornering and straight line speed.

Chassis Design Notes

The AR chassis is chosen for aerodynamic advantage and a straightforward assembly process. Its layout supports quick changes to gear sets and motor mounts, helping speed up the tuning cycle.

Customising the Kit

  • Motors: Works with single-shaft motors ranging from stock to high output units.
  • Tires: Low profile tyres are recommended for better track contact and quicker turn-in.
  • Gears: Multiple gear options allow fine tuning between acceleration and top speed.
  • Dampers: Aftermarket dampers can be fitted to improve response on bumpy lanes.

Race Day Setup Tips

The Shadow Shark performs well on both speed oriented lanes and technical layouts. Make incremental changes to tyres and gearing to find a setup that balances cornering and straight line pace.

Specifications

  • Chassis Type: AR
  • Body Style: Formula Racing Inspired
  • Motor Compatibility: Single Shaft Motors
  • Racing Customization Potential: High

Tamiya 18704 JR Mini 4WD REV Shadow Shark is a versatile platform that rewards careful tuning, making it a good pick for racers who like to test different setups.

A standard build usually takes a few hours depending on painting and detailing; leave extra time if you plan to fit upgrades or tune gearings immediately.
Start with a mid range gear ratio that balances acceleration and top speed, then step up or down based on the track profile and motor choice.
Yes, use lightweight paints and avoid adding heavy layers that shift balance; trimming excess paint from mounting points helps preserve fitment.
The base kit fits many club class rules but always check your local event regulations for allowed modifications and motor limits.
Store in a dry box away from direct sunlight, remove batteries after running, and keep spare tyres in a cool place to prevent hardening.

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