Yokomo S4-304CPA Graphite Center Mount Plate for YZ-4S  [S4-304CPA]

Graphite center mount plate

This is a graphite center mount plate designed for the YZ-4S RC chassis. It provides a direct replacement option for the stock center mount, using graphite material to alter center-section stiffness and weight distribution on the model-scale chassis. The part is intended for RC-scale tuning and must be installed using the vehicle's existing mounting points.

Installation focuses on alignment and torque control rather than custom fabrication. When fitting the plate, confirm the screw holes line up with the YZ-4S mounting pattern, and secure fasteners to recommended thread engagement without over-tightening to avoid stressing the graphite. Verify clearance for drivetrain components after installation and check chassis flatness on a bench to ensure consistent handling.

Tuning role: moving to a graphite center plate generally increases central stiffness compared with softer materials, which can sharpen turn-in and reduce mid-corner body roll on track-oriented setups. Use incremental changes and test runs to assess handling differences, and pair the plate with small suspension or damping adjustments to balance response.