I have successfully used the 910xt with provided magnetic crank sensor for over a year. I recently changed my cranks to a shorter crank. I re-installed the magnet to the same place. Ever since the re-install the cadence is reading twice the actual value. Does anyone have any recommendations to fix this?
GSC10? I'd still double check the alignment. Run the test procedure and make sure you only get the red when the crank magnet passes. I've had an instance of magnet triggering both sensors, so watch for that. Ensure the wheel magnet doesn't trigger the crank sensor.
Is it exactly double? That might indicate alignments not the issue. Seems like I read a post about that somewhere a long time ago, but don't remember the issue/solution. You don't have a magnet embedded in you new crank arms do you?
