serrated design

Install the device so it can grip into the ground and it will help to get your truck from those bad spots

Restores smooth engagement and power transfer

18T x 12mm

Losi LOSA9112

Traxxas X-Maxx RPM A-Arm Set Front Rear Upper Lower Suspension Arms Black Rustler Parts serrated designTraxxas X Maxx RPM A Arm Set Front Rear Upper Lower Suspension Arms Black Incldues : 4 upper and 4 lower arms (Enough for 1 Truck) RPM Traxxas X Maxx Upper & Lower A Arms were developed to handle the weight and the punishment the massive X Maxx trucks can dish out. Starting with the upper A arm, RPM used their proven A arm designs from past successful builds to create an upper support structure sure to handle anything you can throw at it! The lower A