Axial Yeti XL Front Sway Bar Set! Designed for high speed this system will let you soften up your suspension for jumps, while keeping torque twist and body lean to a minimum during acceleration. A sway bars main function is to control body roll, yet still allow your shocks to move vertically with the changing terrain. What does all this mean? It means more stability at high speed. A must have upgrade for any would be rock racer. Works with Yeti XL Steel construction for durability Includes three different bars to fine tune performance