The Factory Pro O-XCP008 Scythe Type option upper deck is supplied specifically for the Xray T4-21 and serves as an RC hop-up to alter upper chassis stiffness and improve balance without modifying core drive components.
As an upper deck option, the part redirects load flow between the shock towers and the chassis centre, enabling finer control over flex for different track layouts. Tuning should be incremental: change a single parameter, then test and record handling and lap consistency before proceeding.
This option is aimed at enthusiasts wanting to fine tune chassis flex and balance on the Xray T4-21; always check fitment and the need for any additional fasteners before track use.
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