Designed for high-volume tire inflation, the Lezyne Macro HV Floor Drive is perfect for mountain, gravel, and fat bikes. It features a durable steel barrel and piston, a stable Composite Matrix base, and an oversized 3.5" analog gauge for accurate readings up to 100 PSI. The extra-long hose and choice of valve heads (ABS Flip Chuck or Dual Valve Head) ensure easy, secure inflation for Presta, Schrader, and Dunlop valves. Lightweight, ergonomic, and built to last, it's an essential tool for fast, reliable inflation.