Lezyne gravel digital drive pro track pumpthe gravel digital drive pro from lezyne features a durable aluminium construction, an accurate 3.5 digital pressure gauge and a max inflation pressure of 100 psi. Plus, it features a durable inflation valve that is compatible with conventional presta valves and threaded tubeless valves.fast and efficient inflation for gravel and mountain bike tyresthe gravel digital drive pro is the ultimate bike floor pump with a medium sized barrel designed specifically for gravel bikes and other mid volume 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. Comfortable, stylish and reliable track pumpthis track pump's barrel, piston and base are meticulously machined from premium aluminium and complemented by a comfortable, stylish wood handle. 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. The gravel digital floor drive pro is built in house, 100% quality controlled and fully rebuildable for long lasting operation.features material premium aluminium max pressure 100 psi 6.9 bar pressure gauge 3.5” 88.9 mm digital gauge valve type presta tubelessbuy lezyne accessories from chain reaction cycles, the world's largest online bike store.