Vittoria Air Liner MTB Tubeless Tyre Insert

Punctures are a fact of life, but the Air-Liner MTB keeps a mid-run flat from imposing an insurmountable time penalty, an auto-DNF, or a hike-a-bike to the transition. The Air-Liner's high-density structure keeps your tire rideable for up to an hour after a flat - enough time to clear a stage or hustle back to the trailhead. Your ambitions don't have to deflate just because your tire did.

The Air-Liner isn't just an emergency flat solution - it also helps prevent punctures by preventing rim strikes. As it compresses, the polymer material ramps-up like a shock. Trail chatter is muted, root lattices are smoothed, and the big hits and square edges of rock gardens are cushioned. The Air-Liner's cross-section keeps the tire's contact surface fluid and flexible, but it also increases lateral stability by buttressing the sidewalls.

• Great Cushioning Increase comfort for long days on the bike, More grip
• Protection Save your rims from impacts, Reduce the risk of snake bite punctures
• Lateral Stability Increase cornering support, Ride faster
• Run Flat Foam expansion in case of puncture

Small / 1.90-2.25 / Up to 30mm Internal Rim Width / 90g
Medium / 2.30-2.50 / Up to 35mm Internal Rim Width / 165g
Large / 2.60-2.70 / Up to 43mm Internal Rim Width / 200g
XL / 2.80-4.00 / Up to 50mm Internal Rim Width / 234g