This is an Arrowmax aftermarket upper deck made to fit Hot Bodies TCXX touring cars. The 1.75mm option targets mid-chassis rigidity to influence handling characteristics in standard TCXX setups. The following sections explain fitment, the deck's tuning function, and installation advice for 1/10 electric touring use.
Compatibility: designed specifically for HB TCXX chassis configurations where the factory upper deck has been removed or is being replaced. Always verify your chassis type and mounting pattern before purchase.
Installation notes: the Upper Deck fastens to the normal TCXX bulkhead points and typically accepts the stock mounting screws. To isolate the deck's effect, replace the OEM deck with this 1.75mm plate and then adjust damping and anti-roll bar settings in small steps.
Tuning role: selecting 1.75mm gives a mid-level stiffness that reduces central chassis flex, often sharpening turn-in and stabilising throttle response on exits. Combine this change with measured spring and damper adjustments to achieve the desired handling balance.
Install this upper deck for a clear mid-chassis stiffness change and then refine damping settings on-track to tune handling without major chassis work.
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