Foam-based tubular insert, developed for tubeless tyres to protect the rim, provide more grip and prevent punctures. Super light (45 g)! Whether you're a gravel enthusiast, endurance racer or bikepacking adventurer, the Air-Liner Light Gravel provides a more comfortable and reliable riding experience. May only be used in combination with tubeless tyres and tubeless reusable valves. The design of Air-Liner Light increases lateral stability in corners. Thanks to Air-Liner Light, you can take the most extreme corners at higher speeds. Width: 37-40mm.