Yokomo YOKSD009B Inner Suspension Arm Pins  [YOKSD009B]

Inner arm pivot pins for scale RC

The Yokomo YOKSD009B inner suspension arm pins are a replacement pivot component for RC inner suspension arms, designed to keep the arm mounted securely to the chassis pivot. These pins act as the mechanical pivot point inside the arm assembly and help maintain consistent suspension geometry when the setup is under load.

Installation is straightforward: align the arm's mounting hole with the chassis pivot, insert the pin so the arm can rotate freely on the intended axis, and check there is no excessive play. As a routine wear item, inspect the pin and the arm hole for signs of elongation or wobble and replace the pin when movement begins to affect handling.

As part of tuning, inner arm pins form the suspension's mechanical baseline. Worn or loose pins introduce unwanted play that alters roll centre and steering feel, while correctly seated pins preserve suspension timing and repeatability between runs. When you adjust camber, toe, or roll stiffness, verify pins sit consistently to avoid adding variability to setup changes.