Vittoria Standard Butyl Inner Tubes for Gravel 650b / 27.5 Valve:1.5/2.0 (650b 38/50) Presta FV 48mm The Air-Liner is designed using

The Air-Liner is designed using a round cross section

Ride faster

The ELEMNT BOLT is a fully integrated GPS bike computer

Wedge style has strong direction design for dry dirt that easy to drain from center to shoulder

Vittoria Standard Butyl Inner Tubes for Gravel 650b / 27.5 Valve:1.5/2.0 (650b 38/50) Presta FV 48mm The Air-Liner is designed usingSTANDARD Butyl inner tubes butyl inner tubes for everyday use good puncture resistance and airretention wall thickness 0. 9 mm Protection in any instance general purpose butyl inner tubes for everyday use. Standard inner tubes are made with high quality synthetic rubber with a wall thickness of 0. 9 mm. Standard tubes offer good puncture resistance and a solid airtight performance in every instance.