Kyosho has just released their all new MP9 WC a-arms. these arms are molded with extra material aroung the hinge pin holes, as well as extra ribbing on the front of the arm around the sway bar mounts to increase durability. Designed to fit the entire MP9 family (MP9, MP9 TKI2, MP9e), these new arms are available now and are the world champion's choice!