Air Tool Big Bore Pump

Excellent service and communication

This pump is perfect for filling mtb tires. The big chamber makes it easy to pump up on trail. Took a while to figure out how the hose extends but once it does it works really well. Push straight up on one side of the pump head with your thumb and the hose will extend out.

Like the op below states - there isn't any instructions on how to detach the hose extension / pump head, but luckily found something on the web. You have to push up using your thumb from either side of the pump head, so it pops up at an angle. Once that got figured out, pump works great!

I would like to use this pump on multiple bikes but my S dealer says you cannot buy the mounting bracket separately. Makes no sense.

2017 Enduro came with 2 velcro-stretchy fabric tool wraps in the SWAT box. The longer wrap fits an extra tube . The smaller wrap fits this pump perfectly. Pump fits in my downtube and wrap keeps it from banging up the carbon fiber. For what the S-works version cost this should be included as part of the SWAT tool package! It's very nice to have either way.

Pump was very effective off the shelf. But it lacks a cap for the pump head, so grit quickly works its way into the head and prevents the pump head from closing.

This pump works well for low pressures up to about 30 - 35 psi much higher than that is very hard work. It inflates tyres quicker than any other mini pump I've tried. I am using it with 27.5 x 2.3 tyres and to get up to 30 psi it works a charm. The head is OK with a novel grip mechanism, it works reasonably well but can slip off valves without threads all the way along.