Adjustable arm mount allows you to adjust the width of you r/c.
-1 degree arm mount works well for carrying a straight line under heavy acceleration. But you will suffer in the top speed department. When exiting a corner or under full throttle take offs, the rear wheels are angled in 4 degrees to help keep the r/c in a straight line when the tires break loose.
All Fast Lane Machine parts are CNC-machined from 6061 T-6 aluminum — see how aluminum compares to stock plastic.