Lezyne gravel digital drive track pumpthe lezyne gravel digital drive is a superb track pump for fast and efficient inflation for gravel and mountain bike tyres up to 100 psi. It features a durable high grade steel construction, a precise and easy to read digital pressure gauge and is compatible presta valves including threaded tubeless presta valves.high quality track pump for gravel and mountain bikesthe gravel digital drive is a high quality bike floor pump with a medium sized barrel designed specifically for gravel bikes and other mid volume mountain bike tyres. The chuck is tubeless specific and “flips” for presta, or a threaded presta shaft with the valve core removed to provide more airflow for seating tubeless tyres.extra long hose and large digital pressure gaugeits barrel and piston are built from high grade, durable steel and mounted to a rugged composite matrix base. Pumping is versatile and more efficient thanks to an extra long hose and a larger 3.5” 88.9 mm digital gauge, which provides precise measurement up to 100 psi 6.9 bar. And its classic wood handle is stylish and very comfortable to use. The gravel digital floor drive is built in house, 100% quality controlled and fully rebuildable for long lasting operation.features material high grade steel max pressure 100 psi 6.9 bar pressure gauge 3.5” 88.9 mm digital gauge valve type presta and tubeless threaded prestabuy lezyne accessories from chain reaction cycles, the world's largest online bike store.