HPI Racing pair of molded foams are original equipment for the rear of the Baja 5T. Strong and durable MS compound restores grip and handling to tires with worn or damaged inner foams.HPI Racing Molded Inner Foams are original equipment on the rear of the Baja 5T line of 1/5th scale trucks. These are molded foam donuts that help support the tire for stable performance. The "MS" compound is strong and durable, especially important for proper performance on the rear of the Baja 5T. If your stock molded inner foams are worn or damaged, these will restore grip and handling to the truck. Sold in pairs.
Installing inside Rear Tires