CrankPump, Simply Brilliant!

Like the wheel, sliced bread, suspension bikes, CrankPumps make you say, Duh, this will be added to every cyclist bag of tricks.

Most new bicycles have a hollow axle between the pedal cranks. That hollow space is the perfect size for a bike pump. CrankPump is a CO2 pump for Shimano Hollowtech cranks. Simply unscrew the existing plastic bolt, screw in CrankPump, and forget about it until you need it.
Bike pumps are annoying. They live on a bracket that hangs off your bike getting ugly, dirty and lost, or they live in your back pocket beating up your kidneys. Sometimes they live forgotten in your drawer at home or on the road where they fell off. The pump and other stuff needed to repair a tyre hangs off your bike, making it look ugly and un-aerodynamic. CrankPump is a simple way to keep all that stuff from ruining the clean lines of your bike.
Shimano Hollowtech cranks have a plastic bolt that covers a hollow axle. CrankPump is a CO2 pump that is a simple screw-in replacement for that plastic bolt. CrankPump lives in the axle, hidden out of the way until you need it. SIMPLE AND PREFECT.. 

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