Strengthens and stiffens rear suspension

greatly prolonging the service life of the motor

and when you bump the voltage to 7

The KV & torque have been increased by 16% and 4% respectively

Hot Racing - Aluminum Multi-Mount Shock Tower, for Traxxas Ultimate Desert Racer ASC90039C Strengthens and stiffens rear suspensionHot Racing's optional aluminum rear shock mount for the Traxxas UDR. Features: CNC machined 6061 aluminum rear shock tower. More suspension tuning position. High strength steel hardware. Replaces stock plastic shock shock tower. Aluminum components are anodized Black for durability, corrosion resistance, and aesthetics.