This is MST RMX 2.0 S HT Rear Lower Arm 4 Holes & Wheel Hub Set. This is the replacement 4 hole rear arm and wheel hub. Package includes one arm and one wheel hub that can be used on the right or left side of the chassis.
For: MST RMX 2.0 S
MST RMX 2.0 S HT Rear Lower Arm 4 Holes & Wheel Hub (1 set)