The best road mini pump does two things—inflates tubes quickly and efficiently, and it also stashes easily. This reliable little guy does both. Now available with a traditional frame-mounting bracket, the Air Tool Road Mini pump moves almost twice as much air as its predecessor, with its inverted double-chamber design. It gives you total peace of mind on days when pesky flats catch you off-guard. Inverted double chamber design is smaller yet increases the air handling capacity by 58% when compared to our previous design, reducing pumping time by up to two minutes.Presta-only head keeps size and weight to a minimum while the dust cover keeps the insides clean.Machined outer barrel for extra grip while pumping.All-aluminum inner and outer chamber for durable performance.Water bottle boss mount included.Updated dust cover design prevents pump from opening due to vibration.Max pressure: 100 PSI (6.9 bar)Volume-per-stroke: 30ccWater bottle boss frame mounting bracket included.