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I tried out the Airbone Supernova pump. It too claimed high PSI, and only weighs 59g, and it's damn small.
The highest I could ever get it was 70 PSI. That was after more than 500 pump strokes. They have a video which "shows" the pump getting up to 120psi... which most likely is a video where the tyre was pumped with a floor pump, then switched over to the Airbone for display purposes.
Ah, the power of video editing.
edit: to reply to the topic specifically, I'm not sure if the light weight of the IPump would outweigh having to pump for 5+ minutes. I doubt it would be easy to get to over 100psi with such small pump volume, and that kickstarter 'video' that has a still photo of a dismembered hand holding the pump doesn't exactly convince me.
DMF wrote:If that tiny thing can reach 150psi I'll eat my entire bike for breakfast. Very much doubt it would ever even get close to 80psi... And even that would be more than a 100 strokes. At one or another point, it just boiles down to the laws and limitations of physics...
I agree, there is no way known that will reach 150psi in 100, its just simply physics, total volume multiplied by number of strokes.
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Well, that is obviously a typo and is supposed to be 100 mm (i.e. 10 cm).rbynck wrote:Was i really the only one noticing this?A flexible 100m hose makes it easy to reach even the trickiest of valve stems without accidentally breaking a presta head off.
If it weighs 21 grams and yet has a 100 m hose i will buy it immediately!
On the other hand, maybe "the carbon bodied pump can inflate tires up to 150psi/11 bar" is also a typo, and is supposed to be "the carbon bodied pump can inflate tires up to 15psi/1.1 bar". That would at least be more in accordance with the laws of physics than the laws of marketing/hyped investment schemes.
He is a nice guy, as i think. But i hope that he will also send the product. I am waiting and impatient.
timj, did you get your product yet?
to be honest, i don't expect a lot of this pump, it is more a "wannahave" gadget. and for me it is an emergency solution only, i use to take an adapter with me (2g) to pump my presta valve tubes at gas stations. so the pump must only be good enough to bring me to the next gas station.
At the moment i use the Barbieri Nana (30g).
on this pump i really missed a hose, or any kind of fix connection to the valve. the rubber gasket is worn out too fast, in my case usually after 5 uses or so. (do i do something wrong with it ?!?)