Specialized Air Tool Big Bore Hand Pump Black One Size

Designed for Fat and Semi Fat tire bikes, the Air Tool Big Bore Pump packs massive volume-per-stroke, and it features a head that still works with winter gloves on to make it perfect for backcountry winter fat biking.

Coarse machined aluminum barrel for extra grip.

Flexible hose attachment allows for aggressive pumping without fear of damaging valve stems.

Inverted barrel design allows for high volume in a compact size.

Max pressure: 50 PSI (3.5bar)

Oversized press-on Schrader and Presta head won't accidentally remove valve cores and can be easily used with thick gloves.

Volume-per-stroke: 90cc

Water bottle boss mount with elastomer band included.