The Topeak JoeBlow Ace DX delivers elite performance with a three-stage system that maximizes both air volume and top-end pressure. Stage 1 opens both barrels for rapid inflation, Stage 2 uses the main barrel to reach 120 psi, and Stage 3 engages the small barrel for an incredible 260 psi. A SmartHead DX1 adapts to Presta/Schrader valves automatically, while the oversized 4” base-mounted gauge provides precise readings. Built with an anodized aluminum barrel and wide aluminum/rubber base for stability.