TRAXXAS E-MAXX Front/Rear Aluminium Knuckle Arms EMX2021 by GPM  [EMX2021]

Aluminium knuckles built for tougher E-MAXX use

This alloy front and rear knuckle arm set is produced for the TRAXXAS E-MAXX chassis, model EMX2021. The components act as direct replacements or uprated parts for hobby-level E-MAXX trucks, useful where plastic knuckles have worn or when moving to a stiffer steering feel. Design and material choices focus on longevity in off-road and circuit conditions for 1/8 scale or comparable electric monster trucks.

Functionally, the knuckles locate the steering hub and transmit suspension loads into the upright and suspension geometry, while also influencing steering characteristics when combined with different turnbuckle lengths or shock setups. Upgrading from plastic reduces unwanted flex and yields steadier steering response, aiding finer adjustments to toe and camber under load.

Fitting is straightforward: remove the hub assemblies, swap the factory knuckles for the alloy units and reinstall using original hardware where possible. Verify ball stud seating and ensure steering travel and stops remain correct. Apply light thread locker to metal-to-metal fasteners where appropriate.

A straightforward upgrade for E-MAXX drivers wanting reduced flex and more repeatable steering; check clearances and torque specs before heavy use.