Thanks Andrew, had a look at their website, seems to be a brilliant idea:)

@Patrick, thanks for the reply, surely you have a point here which is quite valid, have to admit that i’m a bit of diehard on keeping my Campag crank, recently changed the chainrings as well. If i have to change something I rather change my hub and get a powertap;)

@Luke, thanks mate for the suggestion, read few articles about ibike power meters as to how it employs the third newton law to indirectly measure the power, some sites have compared the results with other famous PMs and results actually aint bad, what I don’t like about them is that, they are not that good in responding to surges, the computer head isn’t as sophisticated as Garmins and changing riding position, drafting etc would impact the readings, surely it’s an innovative solution to measure PM at lower cost but direct measurement is more appealing to me:)

Cheers,
Niv