1. Be sure that the cadence magnets are placed as close to the frame as possible and securely tightened. The grubs screws may not sit inside the bottom bracket grooves. 
  2. If problem persists, switch to the adhesive magnets included with your InfoCrank Power Meter.

Did you know you can ride InfoCrank without magnets? For information regarding our magnet free RevUp Firmware, visit the FAQ link here > http://support.vervecycling.com/support/solutions/folders/1000224997