Tire pumps are ugly, bulky, annoying things to carry around or to attach to bikes, but a pump is a critical biking accessory. That’s why CrankPump is a kick-starting, brilliant way that bikers can forget about their pump until needed. The CrankPump disappears into the bike, never to be lost or in the way again.
How? Clever engineering. Most modern bikes have a plastic bolt screwed into a hollow axle between the pedal cranks.
Screw out this useless plastic bolt, and this space has the perfect dimensions to fit a bike pump, hence the inspiration for CrankPump.
This CO2 pump can be screwed in to replace the original bolt, and like some sort of masked hero, it stays camouflaged until its services are needed. Know more.