An anti-roll bar or sway bar, as the name suggests, prevents your car from rolling about in the corners like a boat on the high seas.
RC Suspension Tuning Guide – Anti-Roll Bar
What is a Sway Bar and What Does it Do, by Linglingc
Anti-Roll Bars. A Good or Bad Thing?
Suspension Setup (Springs and Anti-Roll bars / Sway bars)
Installing Hellwig's Anti-Sway Bar Delivers Better Ride And Handling - Off Road Xtreme
The Basics of Anti-Roll Bars
Anti-roll bar - Wikipedia
Aluminum Alloy Anti-roll Bar Kit for 1/6 Traxxas XRT 78086-4 RC Car Upgrade Part
Anti-Roll Bars – Suspension Secrets