The small yet tough steering obstructs are molded from a certain composite combination for optimum energy. Perfect for high-traction conditions. Generates less on-power steering, simpler to drive. Composite steering block inserts permit extremely fast & easy paid off roll center modification. Roll center is efficiently accomplished with additional shims and extra inserts. For maximum drivetrain dependability, bigger 5x12 ball-bearings with additional powerful load enables you to the outside spot. In inside location, smaller 5x10 ball-bearings can be utilized for minimized unsprung fat. Available in different hardness substances.