The Custom Works Losi 22 SCT Adjustable Arm Kit will optimize your old SCT for oval racing. Allows quick and easy adjustment of Rear Toe Setting just by simply turning the included thumb screw. Very helpful for keeping up with changing track conditions. These fit the original 22SCT and can be used with the 22SCT 2.0 if combined with the 22SCT rear hubs. This set will also fit the Associated SC5M with some slight narrowing of the stock hub carrier.