This SWORKz factory replacement rear sway bar is designed for the S12-3 series 1:10 2WD buggy platform. The bar measures 1.3mm in diameter, which determines its stiffness and handling characteristics. A thinner bar like this provides a softer anti-roll response, helping to tune rear traction and cornering balance to suit different track conditions. Features: 1.3mm diameter for a softer rear roll resistance tune Designed for the SWORKz S12-3 series platform Direct factory replacement part 7/7/26 cs