The Specialized Air Tool Big Bore Mini Pump is a high-volume mini pump designed specifically for fat bike and semi-fat bike tyres. Built for riders who need fast, reliable inflation in demanding conditions, this compact pump delivers a large volume of air per stroke, making it ideal for mountain biking, bikepacking, winter riding and backcountry fat biking.
- Specialized Air Tool Big Bore Mini Pump
- Designed for fat bike and semi-fat bike tyres
- High-volume design for large MTB and off-road tyres
- Ideal for winter fat biking, backcountry riding and bikepacking
- Oversized press-on head works with Schrader and Presta valves
- Easy to use while wearing thick winter gloves
- Valve-friendly head helps prevent accidental valve core removal
- Flexible hose allows powerful pumping without damaging valve stems
- Inverted barrel design delivers high volume in a compact size
- Coarse machined aluminium barrel provides extra grip
- Water bottle boss mount with elastomer band included
Designed with cold-weather riding in mind, the Air Tool Big Bore features an oversized press-on head that works with both Schrader and Presta valves. The large pump head is easy to use while wearing thick winter gloves and is designed to avoid accidentally removing valve cores, helping make trailside tyre inflation quicker and less frustrating.
A flexible hose attachment allows aggressive pumping without placing stress on the valve stem, reducing the risk of damage when inflating large-volume tyres. The inverted barrel design keeps the pump compact while still delivering strong air volume, and the coarse machined aluminium barrel provides extra grip in wet, cold or muddy conditions.
Supplied with a water bottle boss mount and elastomer retaining band, the Specialized Air Tool Big Bore Mini Pump is easy to carry securely on your bike, making it an essential inflation tool for fat bike riders and off-road cyclists.