GPM Racing Aluminium 7075-T6 Front/Rear Knuckle Arms (Larger Inner Bearings) for Traxxas 1/10 E REVO (ER021A)

Precision 7075-T6 knuckle arms for E-REVO VXL

These CNC-oriented front and rear knuckle arms are designed for TRAXXAS E-REVO platforms to improve CVD stability and refine steering geometry. Machined from 7075-T6 aluminium for enhanced stiffness, the components support larger inner bearings and provide multiple tie-rod mounting positions to enable fine steering adjustments without chassis modification.

Design notes: selectable tie-rod locations allow systematic toe and Ackermann adjustments, while adjustable knuckle angle provides a predictable change in steering response. Intended for RC-scale applications; confirm compatibility with the models in the compatibility box below.

Packing includes

• Knuckle arms – 2pcs
• Grade 12.9 Black round head screws 3×20 – 2pcs
• M15x1x10 POM aluminium – 4pcs
• Bearing 6x16x5 – 2pcs
• Bearing 12x21x5 – 2pcs

Original Name / Part No:

5334R

Compatible Models

• TRAXXAS-E REVO 56087-1
• TRAXXAS-1/10 REVO 3.3 53097-3
• TRAXXAS-1/10 SLAYER PRO 4X4 59076-3
• TRAXXAS-1/10 SUMMIT 4WD EXTREME TERRAIN MONSTER TRUCK 56076-4
• TRAXXAS-1/10 T-MAXX 3.3 4WD MONSTER TRUCK 49077-3
• TRAXXAS-1/10 E-MAXX 39085
• TRAXXAS-1/10 E-MAXX 3903
• TRAXXAS-1/10 E-MAXX 3908
• TRAXXAS-1/10 E-MAXX 3905

For a precision aluminium upgrade with larger bearing support and defined tie-rod options on TRAXXAS E-REVO platforms, these knuckle arms offer repeatable fitment and tuning potential for hobbyists and tuners.

What are the core material and machining details?

Components are machined from 7075-T6 aluminium to retain stiffness while allowing additional inner bearing clearance compared to stock parts.

How does tie-rod position affect steering geometry?

Moving the tie-rod anchor changes steering arm leverage and Ackermann ratio, permitting predictable tuning between quicker or more stable steering behaviour.

What checks should be done after fitting?

Confirm bearing seating, verify CVD alignment under static rotation, and perform low-speed tests to evaluate tie-rod location before regular use. Write Product Review Please sign in your account before you can write any review. Sign In Close

Made to order: GPM Racing parts are shipped to us from GPM’s factory, so please allow around 14 days for dispatch.