The one negative review claiming the cap comes loose and dumps the internals is NOT accurate or even possible; at lease when the pump and bracket are mounted on the left side of a right side entry Swat bottle cage like came stock on my S Enduro, with the pump head facing up and in. The pump head cap rests perfectly up against the cage itself, making it impossible to come open. I rode a legit DH&XC mountain decent single track today and it didn't budge one mm. Big hit Hardline hucks to flat may not even faze this little gem. It looks trick and right at home on my bike too, and it's light. I don't expect it to be as good a pump as a floor pump is; so I'm really happy with this little pump. Cheers.

Ultra-small cage-mount pump is OK is a pinch when your CO2 is out and you need to re-inflate. But the dust cover comes out too easily and the guts of the air chuck fall out. It took two gravel bike rides on not-so-rough terrain for this to lose its innards. If you keep it in your bag it may be fine. But don’t mount it on your frame.

Works pretty good. Cool innovation

Super lite

The design is very compact. Locks onto the valve nicely. Minimal feel when stored on the bike. Would recommend.

This is a good little pump that inflates reasonable well without taking a bunch of space.

small perfect

Great little pump

Nice small size

Works well