Stay pumped.Perfect for multi-bike households a massive dual-stage gauge bleed valve and suggested pressure ranges assures the correct pressure. Where it thrives Multi-bike household What it's built for Efficiency Versatility Highlights Grippy footholds ergonomic handle / auto dual-stage extra-large 5' (130mm) gauge for unbeatable readability and accuracy Recommended pressure ranges help select ultra-accurate tire pressure / bleed valve for quick-and-easy pressure adjustments AutoSelect head adjusts to Schrader and Presta valves