Small, efficient, and reliable, the Air Tool MTB Mini pump delivers exceptional performance in a compact package. With an inverted dual chamber design, this pump moves 20% more air per stroke than its predecessor while being 10% smaller, reducing pumping time by up to two minutes. The pump features a twist locking head that easily converts to fit both Presta and Schrader valves, making it compatible with most MTB setups. The machined outer barrel provides extra grip during pumping, while the aluminum inner and outer chambers ensure durable, long-lasting performance. The pump comes with a water bottle boss frame mounting bracket for convenient on-bike storage and portability.