Wonder if this is a worthy product and has it helped many of you? I was recommended the following http://prostores4.megawebservers.com/isportwest_com/-strse-iBike-Sport/Categories.bok which I hoped there was a more fiscally sound solution out there.
At Last Saturday's NTP bike-buying clinic at Conte's in Bethesda, I was talking with one of the sales staff, and he raved about his.
The iBike doesn't measure force applied to the crank or rear wheel, instead it estimates power based on how fast you're going, so if you ride on the hoods, than in the drops, then suck someone's wheel, then unzip your jacket, those could affect the iBike's readings. With a SRM/Powertap/Cinqo, those things won't affect the power readings. Whether or not this variability affects your buying decision is up to you.
I'm using a Powertap and have been very happy with it (the Garmin 310xt I'm using with it, not so much), but can see the attraction, given the price differential.
how is that a wattage meter? it looks like a souped up odo.
i.e., what is it measuring besides velocity?