Project 4X Chassis Plate Magnesium Extra Flex - Arrowmax AM-900008  [AM-900008]

Arrowspace magnesium extra-flex plate for Serpent 4X tuning

This Arrowmax AM-900008 Arrowspace Mg Extra Flex plate is a purpose-built chassis hop-up that changes flex behaviour on Serpent 4X style cars. It is an aftermarket upgrade for Project 4X variants, supplying an alternate stiffness curve to help dial handling without altering primary suspension arms or driveline components.

Fitment and role: this unit replaces the central chassis plate/brace to shift the overall flex envelope. Swapping to a magnesium extra-flex plate adjusts mid-corner compliance and the way steering inputs are relayed by redistributing loads across suspension pick-up points. It is intended for deliberate setup work where drivers make measured tweaks to balance.

Installation notes: fitting requires removing the chassis centre section and reusing the existing fasteners; common hand tools used for Project 4X servicing are adequate. Confirm alignment and screw engagement during reassembly and ensure there is adequate clearance to the motor, ESC and servo. No changes to external drivetrain parts are needed.

Tuning guidance: treat this plate as one tuning variable among springs, shocks and tyre choice. Make one change at a time and record results. Expect refined handling shifts rather than dramatic performance jumps, ideal for track-side trimming and balance refinement.

Compatibility Notes

• Project 4X PRO EP (SER400032)

The AM-900008 Arrowspace Mg Extra Flex is a magnesium chassis option to help fine-tune flex and balance on Serpent Project 4X cars, aimed at careful setup adjustments and incremental handling testing.