Pro Molded Inner Foam for all 26mm standard width tires. All HPI Racing Molded Inner Foams fit into the ribs of our wheels so the Inner Foams don't shift and change the handling characteristics of the car. These new high quality Inner Foams will allow racers to fine-tune their tires to varying traction conditions. For low-traction surfaces, the soft Inner Foams will be the best to use, and on race tracks like carpet and treated asphalt that are high-traction the hard Inner Foams are best. The Inner Foams can be mixed for different traction properties. For example, soft Inner Foams in the rear with hard Inner Foams in the front make the car easier to drive on a slick track surface.
Every set of HPI Racing Pro Molded Inner Foams is re-usable, a fact which all racers will love! Be sure to stock up!
