VITTORIA Air-Liner Tubeless Insert - Gravel, One-Size, 31-40mm giant Less aggressive timing than competitors

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

Human Factor interlocking column

but PNW Components can keep your paws feeling fresh with their customer loved Loam Grip

X-SYNC pulley technology provides greater efficiency

VITTORIA Air-Liner Tubeless Insert - Gravel, One-Size, 31-40mm giant Less aggressive timing than competitorsAir 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