Designed specifically for our Racing Slick 24mm tires, our Pro Molded Inner Foams in "mid-width" 24mm size are the ideal match. The three different compounds of inner foam allow racers to fine-tune the tire/insert combination for better results. These new inserts are color-coded for easy identification. Racers should start out with the same tire/insert combination front and rear, and if they need less steering they can try a firmer insert in the front tires, or a softer insert in the rear tires. If the racer needs more steering, they can try a softer insert in the front or a firmer insert in the rear. Be sure to get your orders in now, the Pro Molded Inner Foams in 24mm width are sure to go fast.