evo.com | Specialized Mini Pumps > The Specialized Air Tool Flex Mountain Bike/Road Pump uses an inverted camber design and easy-to-operate hose to refill mountain bike tires on the go. Plus, its pressure gauge gets up high enough for those neccesary road rides in between. Water Bottle Boss Frame Mounting Bracket Included Volume-Per-Stroke 30cc Schrader and Presta Thread-On T-Head with Flex Hose Machined Outer Barrel for Extra Grip While Pumping All-Aluminum Barrel and Shaft for Durable Performance | Specialized Air Tool Flex Mountain Bike/Road Pump 2024 in Black | Aluminum