The Hot Racing Traxxas TRX-4 Modular Brass Metal Knuckle Portal Cover adds a total of 144 grams of unsprung weight down low where it needs to be.

Features:

• CNC machined solid brass
• Three ways to add Opential weight to vehicle for greater stability.
• Three rotated mounting position weight distribution for better performance
• Direct replacement for factory plastic steering knuckles Portal Gear Cover (TRA8251)
• Weight 72g each (with out hardware)