iQ2 Power Meter on Kickstarter

super slim

super slim

Zen MBB Master
Eric Winn said:
This should be interesting. I've pledged for an early bird left-right.

https://www.kickstarter.com/projects/1468298434/cycling-power-meter-at-a-breakthrough-price

Ray (DCRainmaker) already has a video on these things:

Risk is high but cost is low enough to make me wonder but willing to expend the funds...

-Eric
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The Power Meter is too close in design to the failed Limits Pedal insert style!
It will solve all my problems if it works, but I will wait until DC Rainmaker can ride with one and check out the data!
 
DavidCH

DavidCH

In thought; expanding the paradigm of traversity
Looked pretty convincing to me and these guys aren't Chinese (more trustworthy) than the last Kickstarter project I backed.

I backed the product and just asked about cadence... I can't see how their technology can monitor cadence. I know watteam powerbeat does but I can't use the powerbeat sensor on my cut down cranks . So with the IQ this would be perfect for short cranks.
 
benphyr

benphyr

Guru-me-not
@DavidCH
My Stac Zero powermeter trainer does not have a cadence sensor but does report cadence. It has a strain gauge to report force and a speed sensor to report distance thereby can provide power. I asked the same question of the designer and he explained that our human muscles pushing and pulling on the pedals result in forces on the wheel that follow similar patterns all the time. The power meter computer is already translating the wheel rotation and instantaneous force inputs and wheel diameter constant into speed and power, they have taken it a step further (that actually is not too hard according to him) and had it recognize the recurring patterns and translate that into cadence. (I am guessing it would be something like determining the frequency of peaks on a sine wave. But that is just a guess.) The cadence reported appears to be accurate from comparison with my friend's Powertap hub powermeter. I would guess it would be a similar process.
 
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DavidCH

DavidCH

In thought; expanding the paradigm of traversity
benphyr said:
@DavidCH
My Stac Zero pwoermeter trainer does not have a cadence sensor but does report cadence. It has a strain gauge to report force and a speed sensor to report distance thereby can provide power. I asked the same question of the designer and he explained that our human muscles pushing and pulling on the pedals result in forces on the wheel that follow similar patterns all the time. The power meter computer is already translating the wheel rotation and instantaneous force inputs and wheel diameter constant into speed and power, they have taken it a step further (that actually is not too hard according to him) and had it recognize the recurring patterns and translate that into cadence. (I am guessing it would be something like determining the frequency of peaks on a sine wave. But that is just a guess.) The cadence reported appears to be accurate from comparison with my friend's Powertap hub powermeter. I would guess it would be a similar process.
Click to expand...
I did get a message from the IQ2 power team... you have to have cadence in order to work out power and they will be giving the cadence values. All I can see is win win... but power meters are notorious for burning money in R & D. IQ2 looks certainly at a good position with all their backers at the moment. Let's see if they can make this dream come true.
 
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