HB TCXX Upper Deck 2.25mm by Arrowmax AM-TCXX-68761-V2  [AM-TCXX-68761-V2]

Upper Deck for HB TCXX (2.25mm)

The Arrowmax AM-TCXX-68761-V2 upper deck is an aftermarket 2.25mm upper plate designed for HB TCXX chassis. It serves as a direct-fit top structural component to influence chassis rigidity and handling response without changing core suspension geometry.

Fit and installation: the part is intended to align with the TCXX chassis mounting points and fastens using existing screws and hardware from the stock upper deck. When replacing the stock piece, confirm hole alignment and use the same screw lengths to avoid interference with internal components such as the ESC or battery strap.

Tuning role: a 2.25mm upper deck is typically used to increase torsional stiffness compared to thinner plates, which can translate to crisper steering and reduced flex during cornering. Use this part when you want a firmer front-to-rear response for track setups; pair it with incremental changes to shock springs and anti-roll balance rather than multiple simultaneous adjustments.

Use the AM-TCXX-68761-V2 as a straightforward tuning part to modify chassis stiffness and fine-tune handling on HB TCXX cars; verify fit before racing and make incremental setup changes to understand its effect.