TRAXXAS E-REVO Aluminium Front Rear Knuckle Arm Set ER021 by GPM  [ER021]

Overview of aluminium knuckle arms

This aluminium front and rear knuckle arm pair is an aftermarket replacement built for TRAXXAS E-REVO style platforms and is provided as left and right components. The machined aluminium body focuses on cutting steering tolerance and maintaining a precise interface between steering linkage and wheel hub, keeping suspension geometry stable under load.

Designed for RC use only, the arms fit where TRAXXAS E-REVO style knuckles are accepted and they use the same mounting points as the stock plastic parts. Reuse factory hardware when suitable and confirm clearance around hex dust caps and dust-proof covers. Fitment is tight with low play, which promotes sharper steering feel during tuning and setup work.

The package also supplies small service items to aid assembly: Delrin screws, several dust caps and O-rings to help retain seals at pivot points during typical off-road operation.

Use these knuckles when you want a tough, low-play upgrade over plastic parts to achieve more predictable steering and easier setup adjustments.