KRC Throttle Linkage Rod When you have a race on the line, choose KRC Racing throttle linkage rods. They are made from heavy-duty, lightweight aircraft aluminum and come threaded on both ends. These are the same rods used in KRC quick-disconnect kits and are ready for you to cut to fit your application. You cant go wrong with throttle linkage rods from KRC Racing. Lightweight Aluminum. 3/8-24 Thread. 22" Long. Natural Finish. Sold Each.