PROLINE PYRAMID T 2.2 MED.ASTRO Z3 TRUCK REAR TYRESAstro turf racing has been steadily growing in the U. S. and around the World and Pro Line has you covered with the all new Pyramid Stadium Truck rear tyre! The Pyramid features hundreds of large pyramid shaped pins with the knife edge pointed front to back and side to side for maximum grip that stay sharp even as they wear down. The carcass shape and tyre thickness of the Pyramid T has been optimized for the demands of Astro racing. The Pyramid comes