- Ultralight puncture solution for trail + XC tires - Provides all the pinch-flat resistance and tire performance boost of the Air-Liner MTB, but at a fraction of the weight - Ultralight construction also limits rotational mass above the bead, and it reinforces the sidewall while letting the tread ride on air - Contact patch stays fluid on terrain and punchy while pedaling, but the tire doesn’t flop or fold under lateral loads or while cornering - Prevents punctures, progressively ramping up under compression to eliminate rim strikes and snake bites when you over-send a line or catch a square edge - Expands after a flat and can be run flat - Valve included