MST RMX-M Aluminum Upper Arm Set (Red) (2) USB Programming Kit conveniently pre-mounted to our Mini

conveniently pre-mounted to our Mini Holcomb Black Internal Bead-Loc 1

You can limit the rig's maximum speed to 50% or 75% until you’re comfortable driving at full power

mounted to FireSickle drift tires - an ultra low-profile

These optional front linear rate springs are intended for the Traxxas Slash and Stampede platforms

MST RMX-M Aluminum Upper Arm Set (Red) (2) USB Programming Kit conveniently pre-mounted to our MiniUpper Arm Overview: Max Speed Technologies RMX M Aluminum Upper Arm Set. This is an optional upper arm set intended for the MST RMX M Drift Chassis. About the Upper Arm Set Advantage This upper arm set offers precise adjustability, allowing you to fine tune caster and camber. Optimize your drift chassis for maximum control and flickability. Features: High quality aluminum construction Wide range of tuning adjustments Increases caster adjustment window