What Our Gearhead® Experts Are Saying:"This pump is a beast. It fills my 2. 5s and plus tires fast without breaking a sweat. Big barrel, solid base, and it just works every time. A must-have for home setups with wide rubber."When we’re running wide trail, enduro, or plus tires, a standard floor pump just doesn’t cut it. That’s where the Topeak JoeBlow Mountain II Floor Pump steps in—with a large-diameter barrel specifically designed for high-volume tires, it makes inflating fat rubber fast, easy, and reliable. The wide steel barrel moves more air per stroke than standard pumps, cutting inflation time for large tires. A large analog gauge provides easy-to-read pressure feedback, and the TwinHead design fits both Presta and Schrader valves without changing hardware. With its oversized padded handle and wide base, this pump feels solid and stable, even during quick top-offs before a ride or big fills after tire swaps.