TRA5471 Traxxas Response 3.8" Tires w/Foam Inserts. Response tires are true thoroughbred racing tires.
 The short rectangular spikes offer tremendous traction on hard-packed “blue groove” tracks. The tires are narrower in width to reduce rotating mass and greatly improve acceleration and responsiveness. The soft compound combined with the included foam inserts makes for a winning combination. The total weight savings when the stock tires are replaced with the Response racing tires is 305 grams.