Yokomo YOKYX40S Pitching Damper Shock Shaft & Piston  [YOKYX40S]

Pitching Damper Shaft & Piston

This YOKYX40S component is an RC-scale pitching damper shaft and piston set offered by Yokomo for use with YRX-12 pitching dampers. It is intended to replace worn shaft or piston elements in a pitching damper assembly, restoring predictable stroke behaviour and supporting consistent damper response during acceleration and braking maneuvers on track.

Installation is straightforward for users familiar with shock servicing: remove the damper assembly from the chassis, disassemble the pitching damper per the chassis service procedure, swap the shaft and piston, then reassemble using your existing seals and oil. Take care to keep parts clean and to check that the piston moves freely through its travel before reinstalling the damper.

In tuning terms this part directly affects pitching response rather than spring rate. Changing the shaft or piston can alter flow characteristics and mid-stroke damping feel, so use it when you need repeatable damper action or when a damaged piston/shaft is causing inconsistent pitch control. Pairing the replacement with the same piston hole count and oil grade preserves baseline damper settings.