HB TCXX Top Deck 2.0mm Replacement - Arrowmax AM-TCXX-68484  [AM-TCXX-68484]

Top deck replacement for HB TCXX cars

This upper deck is supplied as Arrowmax AM-TCXX-68484 and is intended as an RC-scale replacement for HB TCXX chassis. At 2.0mm thickness it provides a structural top plate that links front and rear modules, helping to reduce unpredictable flex and delivering a consistent surface for mounting electronics and suspension pick-ups. The approach prioritises fit and repeatability over performance marketing claims.

How to fit: remove the OEM upper deck, align the AM-TCXX-68484 with the factory screw holes, then reinstall using the original hardware. No additional cutting or fabrication should be required on a stock HB TCXX chassis. After installation, confirm screw torque and clearances and make sure radio wiring does not contact the plate.

Role in tuning: deck thickness affects chassis torsional stiffness. A 2.0mm plate normally creates a moderate stiffness baseline that helps balance handling across mixed surfaces; consider this deck when you want a predictable mid-range response and adjust suspension settings to complement the change.

Use the 2.0mm Arrowmax top plate for consistent baseline behaviour on HB TCXX models; always double-check fitment and mounting hardware before running.