Vittoria Standard Butyl Inner Tubes for Gravel 650b / 27.5 Valve:1.5/2.0 (650b 38/50) Presta FV 48mm The Air-liner Road insert can

The Air-liner Road insert can be safely ridden inside a deflated tire

The ELEMNT BOLT is a fully integrated GPS bike computer

The Air-Liner is designed using a round cross section

3-row screen with up to four data displays and is also triple wireless upgradeable with an optional heart rate sensor so you can capture all the data you need

Vittoria Standard Butyl Inner Tubes for Gravel 650b / 27.5 Valve:1.5/2.0 (650b 38/50) Presta FV 48mm The Air-liner Road insert canSTANDARD 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.