Factory Pro FP-O-TCP004 Tamiya TRF421 Split Upper Deck 2mm Medium Graphite  [FP-O-TCP004]

Improve TRF421 chassis balance and feedback

The Factory Pro FP-O-TCP004 Split Upper Deck is a sensible upgrade for Tamiya TRF421 enthusiasts who want sharper chassis balance. Made from 2mm graphite, it increases structural stiffness while keeping the assembly light.

Controlled handling with a split design

The split upper deck permits subtle differences in flex across the chassis, helping you fine tune understeer and oversteer tendencies for more consistent cornering performance.

Compatibility and quick fit

Designed specifically for the TRF421, this part fits cleanly into the original mount pattern and installs with basic tools. After fitting, modest tweaks to suspension geometry will help integrate the new feel.