Falken Tire introduced the new Azenis RT615-K, a DOT-approved track radial. The tiremaker said the new line, which will replace the popular RT615 line, features a number of improvements over its predecessor, including an all-new tread compound. In addition, the new RT615-K features an 8/32nds molded tread design, light weight casing construction and high-tension carcass for grip, improved handling response and high speed stability, Falken said. The new RT615-K carries a 200 AA UTQG rating, and will be available in a range of 21 sizes.