Coming from Yeah Racing and made for the popular Traxxas TRX-4 trail truck are new brass and aluminium option parts. First up is a complete set of brass suspension upgrades that includes a pair of steering knuckles, C-hubs, four wheel hex adapters as well as a pair of portal axle covers and mounting hardware. The parts add a combined 324g to one of the lowest areas of the chassis, something that will greatly improve traction and climbing performance. All parts come in a shiny natural finish. Also new is an aluminium rear frame brace that will improve the structural integrity of the chassis. The brace will replace the standard composite item for greatly improved rigidity and durability. Machined from black anodised aluminium the brace also sports machined silver edge details for cool looks.