The sway bar kit (also known as an anti-roll bar kit) is a tuning option designed for use with the Sworkz S12-2 series of 1/10 scale 2WD electric off-road racing buggies (including the S12-2C, S12-2D, etc.). Sway bars help manage chassis roll and can be adjusted to fine-tune handling characteristics on different track surfaces (e.g., carpet or dirt).