Tamiya 9803475 - TRF421 Upper Deck B Race Upper Deck  [9803475]

Price:
CAD$0.00
Brand:
Tamiya
Model:
9803475
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Fine Tune Track Handling with Tamiya 9803475 - TRF421 Upper Deck B

The Tamiya 9803475 Upper Deck B is made for the TRF421 chassis and boosts structural stiffness to help keep the car planted. Hobbyists aiming for steadier cornering and predictable setup behaviour will value this precisely manufactured spare part.

Stiffen the Chassis for Cleaner Steering

Installing the Upper Deck B reduces flex under load, producing sharper steering inputs and more consistent responses at speed. This is useful in tight sequences and when pushing for faster lap times.

Designed Specifically for TRF421 Fitment

Engineered to match the TRF421 geometry, this upper deck fits without extra modification and strengthens the overall chassis assembly for long term durability.

Adding the Tamiya 9803475 Upper Deck B typically firms the chassis, which can shift the car to a slightly more responsive steering feel. Fine tuning with shocks and ride height is recommended after fitment.
Installation is straightforward for most hobbyists using basic tools; consult the TRF421 manual for correct screw torque and alignment tips.
It is intended for TRF421 models that accept the Upper Deck B layout, but check your chassis revision against the part number 9803475 to confirm fitment.

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