ENDURO SENDERO Trail Truck Aluminium Front Knuckle Arm ES021 by GPM  [ES021]

Aluminium knuckle arm tuned for trail control

This aluminum front knuckle arm is an RC-scale hop-up designed to reduce CVD play and sharpen steering feel on ENDURO SENDERO style trail trucks. Constructed from 6061 T6 aluminum, the part aims to offer a balance of lightness and strength to resist deformation in typical hobby use. A hand-inserted Delrin collar helps cut joint play so steering feels firmer while leaving stock geometry intact.

The component is intended as a direct-fit upgrade that uses the original mounting points and supplied hardware. It is supplied with the necessary fasteners and lock nuts for an easy swap-in and requires no additional machining. The focus is on improving steering feedback and the longevity of steering linkages in trail environments rather than altering suspension characteristics.

Use these knuckles as a precision durability upgrade during setup: they assist in keeping axle-to-wheel alignment stable under load and reduce slop that can mask small tuning adjustments. After fitting, confirm fastener torque and CVD clearance and follow standard hobby checks for threadlocker and bearings.

Install this knuckle arm to tighten steering response and protect steering components on ENDURO SENDERO trail trucks while keeping OEM fitment and adjustment options.