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

Replacement top plate for HB TCXX platform

This upper deck is an RC replacement part for HB TCXX series chassis, supplied as Arrowmax AM-TCXX-68484. The 2.0mm thickness creates a structural top plate that connects front and rear layouts, helping to moderate chassis flex and offering a consistent surface for electronics and suspension pick-ups. The design is focused on reliable fit and repeatable mounting rather than advertised performance boosts.

Basic fitting: remove the original upper deck, align the AM-TCXX-68484 to the factory screw pattern and fasten using the OEM hardware. No special modifications are required for a stock HB TCXX chassis. After fitting, check screw torque and verify that radio gear and wiring clear the plate to avoid pinch points.

Setup impact: changing deck thickness changes torsional stiffness. A 2.0mm plate typically yields moderate stiffness that suits a wide range of surfaces and driving styles; use it when you want a stable mid-range handling baseline and pair it with standard suspension adjustments for fine tuning.

Select this 2.0mm Arrowmax deck for predictable baseline stiffness on HB TCXX models; confirm fit and re-check mounting hardware after initial track sessions.