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. - The Air-liner Light lives by it's namesake coming in at a scant 55g each and will go unnoticed to even the most finicky XC racer, with no loss in the benefits of using a liner - 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