ARC A11 Upper Deck Graphite 2mm by Factory Pro O-ARCP04  [FP-O-ARCP04]

ARC A11 Upper Deck (Graphite 2mm)

This is a 2mm graphite upper deck made for the ARC A11 chassis as an RC-scale spare part. The plate replaces the stock upper deck to alter chassis stiffness and tuning response without changing suspension geometry.

Installation is straightforward for users familiar with ARC A11 servicing, it mounts to the original upper deck points and uses the same fastener locations, so check existing screw lengths and clearances before fitting. No additional parts are required beyond the vehicle's original hardware.

On-track role and tuning notes: increasing upper-deck stiffness shifts mid-span flex characteristics, which typically sharpens turn-in and can reduce roll under power, affecting traction and steering balance. Use this part as a measured change in a stepwise setup process, testing one variable at a time to understand its effect on lap time and tyre wear.

As a direct replacement upper deck, this graphite plate is intended for hobbyists using the ARC A11 who want a controlled change to chassis stiffness for setup tuning on different track conditions.