* Problem: Edge 530 seems to be inflating power output from Rotor INspider power meter by ~6% (versus calibrated Vector 3 pedals) at all power levels.
* Other details: my bike has 165mm cranks on Rotor oval chainring.
* Calibration (crank length) issue the problem? Edge 530 indicates crank length detection is 'automatic'. Having spoken to Rotor, it is not. Attempt to change it to correct value (ie 165mm for me) on the Edge device does not seem to have an effect (default is 170mm). Neither does using Rotor's official app to calibrate.
* Fix? I switched from the Edge 530 to my Fenix 5 (v 21.00). It worked! No issues calibrating with effective crank length adjustment. Now <1% difference with Vector pedals.
