ST Racing Concepts have introduced new brass differential covers for the Traxxas TRX-4 and Axial SCX10 II. For stability and enhanced performance, crawler enthusiast have relied on using brass components to add more weight to the axles and to the lower parts of their rig. To help add more weight and realism, the CNC machined brass covers come with a hard black surface coating for looks and wear. The TRX-4 cover adding nearly 47g of weight to the drive axles while the SCX10 II part adds nearly 27g of weight.
Source: ST Racing Concepts