Continental Race King Tire - 29 x 2.20, Tubeless, Folding, Black/Bernstein, BlackChili, ProTection, E25Super fast rolling tire with widely spaced knobs to handle a wide range of conditions The extra all round puncture ProTection layer renders the casings extremely durable and resistant to damage or penetration from foreign elements. Treads and sidewalls are equally protected, and are 25 % lighter and offer 30 % more puncture protection than their predecessors protected by DuraSkin. Rolling resistance and absorption has also significantly improved Black