Vittoria Air-Liner Light Tubeless Insert - Gravel 650b x 42-50

Vittoria Air-Liner Light Tubeless Insert - Gravel 650b x 42-50. The Air-Liner Light is an ultra-fast and light-weight tire insert intended for the performance rider or anyone looking to improve the reliability and performance attributes of their ride.

Improved grip at lower pressure with greater tire stability

Lowered risk of tire burping and the upside of run flat make this the leader in performance tire inserts