Kyosho IFW332-R Right Aluminum Knuckle Arm

This is the right-hand aluminum steering knuckle arm for Kyosho's Inferno MP777 and ST-R platforms.

The knuckle arm is the upright the front wheel hub mounts into, and it is what physically steers the car. It carries the steering link, defines the steering axis, and absorbs every impact the front wheel takes. On a 1/8 scale car those impacts are substantial, which is why an aluminum version exists.

Kyosho's own reasoning for the part is that machining it in aluminum increases strength and makes the steering more positive, and that separating the bearing bush into its own part makes maintenance easier. That second point matters in practice: when the pivot wears you replace a cheap bush rather than the whole arm.

This is the right side only. Left and right knuckles are mirror images and are not interchangeable, so confirm which side you need before ordering. Kyosho sells the left individually and both together as a pair. Note that the bushings are a separate part number and are not included. Fitment covers the Inferno MP777, ST-R, ST-RR and ST-RR Evo.