TRX-4 alum. knuckle arm

The TRX-4 Samix Aluminium Knuckle is an excellent upgrade for your RC truck. These knuckles add 16g per side, providing a better center of gravity and forward weight bias for improved climbing performance. Made of high-quality aluminum, these knuckles are more durable and rigid than factory parts. They are etched with L and R for easy installation and are compatible with factory Traxxas parts, as well as the rest of the Samix brass or aluminum upgrades. Available in black, gray, and silver, these knuckles are a great addition to your TRX-4.