@PHXATC: great, 52/36 is 110bcd (compact), so you would need to choose that version. What chain rings do you use?
@asad137: you could use 3D crank arms purchased separately. No modification needed. Just use the specific tool you can get from us to install the power meter on it.
@Jakob1989: that's right, you don't need to auto zero because the power2max will auto zero every time you stop pedalling for 2 seconds or more. What the navi2coach menu refers to is turning auto zero on and off. On our units it is always turned on to make sure you get the most consistent data.
@Russ Brand: the calibration value reported on your unit is just for your reference. The power2max calculates power and then transmits that, so auto zero changes the calculation, as you say. You can actually forget about the number you see on the screen because you have two mechanisms keeping your data true: auto zero every time you stop pedaling and temperature compensation for temperature changes in between. The latter one would only matter if you did a huge long climb where the temperature dropped significantly during a very long period of sustained pedaling. In practice auto zero has you covered in 99% of the case. For the last 1% we have included the temperature compensation.
@parasky: we have a video showing the installation procedure. Sorry it's still in German, have to get around to dubbing it in English.
Cheers to all,
official power meter of Movistar Team