BRN21560M – COPERTURA BRN TRAVEL 29 x 2.40 MAX PROTECTION NERO – BRN Travel SUV Max Protection Tire 29 x 2.40 (60-622) black 30 TPI. Max Protection tires feature a double layer of puncture protection, a total of 4 mm of shield: a first layer of 3 mm thick elastic rubber as the initial protection against needles, thorns, nails… and a second protective layer of 1 mm of Aramid (Kevlar) as a final protective barrier should the blunt object penetrate the first layer. These two levels of protection make the tire practically impenetrable, making your bike rides safe and worry-free.