More powerful than its compact size suggests, the Lezyne Micro Drive HP Pump provides 160PSI of maximum pressure to your tires. The Air Bleed System ABS with Flip Thread Chuck works with both Presta and Schrader valves, thanks to its dual sided screw interface. Its built in button bleeds out Presta valves for fine tuning pressure, also alleviating built up pressure within the hose when you're removing it from Schrader valves. Additionally, you'll find its stainless steel wire foot peg provides a stable platform when you're pumping up your tire, while the included Composite Matrix frame mount easily attaches to your bike frame for maximum portability. Please note that this pump comes in two versions, one with a built in pressure gauge and one without for a lighter overall weight.