Twenty one grams. Thats how much the worlds lightest presta only bicycle pump weighs. Despite the modest package, the carbon bodied pump can inflate tires up to 150psi/11 bar.

The pump is so small, it can be stored inside your bicycle frame by dropping a spring down your seat tube. The iPump Micro then rests conveniently on top of the spring, ready for whatever emergency rises. We just hope the the pump and spring don’t make too much of a rattling noise when stored this way.

Breeze past the break for more info

A flexible 100m hose makes it easy to reach even the trickiest of valve stems without accidentally breaking a presta head off. The pump is designed to work on Presta valves only, but inventor Morris Ostrow has also created an extremely light Schrader to Presta Adapter. His adapter, pictured above, weighs 1 gram! All backers will receive the pump and adapter, but if you’re only interested in the fly weight adapter, you can pledge just $8 for the tool.

This extraordinarily light pump will set back kickstart pledgers between $80-$100 depending on when you pledge. You have until January 19 to pick up your pump at a special introductory rate. Estimated delivery time for the pumps is January 2014.

Get one here.