HB TCXX Upper Deck 2.0mm by Arrowmax AM-TCXX-68484  [AM-TCXX-68484]

Upper deck for TCXX chassis

This upper deck is an RC-scale replacement part intended for use with HB TCXX series chassis, supplied as Arrowmax AM-TCXX-68484. At 2.0mm thickness it serves as a structural top plate that links the front and rear layouts, helping to stabilise chassis flex and provide a consistent mounting surface for electronics and suspension pick-ups. The design focuses on fit and repeatability rather than aftermarket performance claims.

Installation is straightforward: remove the stock upper deck, align the AM-TCXX-68484 with existing factory screw holes, and secure using the original hardware. No additional modifications are required if the chassis is an unmodified HB TCXX platform. Check screw torque and clearances after installation, and confirm that radio gear and wiring sit clear of the plate.

Tuning role: swapping deck thickness changes the chassis’ torsional stiffness baseline. A 2.0mm deck typically yields moderate stiffness suitable for balanced handling on mixed surfaces; use this deck when seeking a predictable mid-range response during handling setup. Combine with standard suspension tuning steps rather than relying on the deck as the sole change.

Use this replacement upper deck when you need a consistent 2.0mm top plate for HB TCXX cars; verify fitment and re-check mounting hardware after first runs.