TRX-4 brass knuckle & portal knuckle cover & scale brake rotor & caliper set

Brass knuckles add 51g per side. Better center of gravity and forward weight bias for climbing. Brass portal knuckle covers add 55g a pair. Improves climb performance, provides greater stability and lower CG. Scale brake rotor and caliper set adds a realistic look to your crawler. Made of high quality brass material with black coating to avoid oxidation. Provides increased durability and rigidity over factory parts. Compatible with Traxxas parts and other Samix brass upgrades. Samix logo etched into the coating.