Tamiya 42349 TRF420 Carbon Upper Deck 1.75mm - Track-Focused Flex  [42349]

Tweak Chassis Flex for Sharper Turn-In

The Tamiya 42349 TRF420 Carbon Upper Deck gives the TRF420 chassis a touch more compliance. At 1.75mm thickness this carbon plate is thinner than the kit item, helping the car settle and bite on high-traction surfaces.

Why the Thinner Deck Helps on High-Traction Circuits

Constructed of carbon fiber and cut to 1.75mm, this upper deck is 0.25mm thinner than the original. That reduction increases how the chassis flexes, benefiting handling where precise weight transfer matters through tight sections.

Compatibility Notes and Setup Advice

The part is intended for the TRF420 chassis. Best results come when used with the aluminium lower deck (Item 42350) to produce a responsive, well-balanced feel that pairs well with medium to soft spring rates.