VITTORIA Air-Liner Tubeless Insert - Gravel, One-Size, 31-40mm giant Human Factor interlocking column

Human Factor interlocking column

hand pump size

provides a high level of flat protection

Less aggressive timing than competitors means any change in pedal stroke is unnoticeable for most riders

Dual-sided pop-up bindings that position the body at 12

VITTORIA Air-Liner Tubeless Insert - Gravel, One-Size, 31-40mm giant Human Factor interlocking columnAir Liner GRAVEL is an insert for tubeless ready gravel tires. Re usable and very easy to install as easy as mounting an inner tube on your tire Air Liner GRAVEL it is compatible with tubeless ready tires only and with 3 way valves (in the packaging, 5 way valves are provided for ultimate airflow). The insert can be used with sealant preferably without ammonia