Originally posted by solidengineer
I also hae the power option on the 720i, and have had similar problems. Inconsistent readings, not comparing well to computrainer.
I also am having a problem getting the device just to stay put to even register a reading. That is, the cadence maganet that goes on the end of the crank has to be so close to the power sensor to work, that I have it kind of on an angle, teeter tottering at 45 degrees on the 90 degree edge of the crank, held in place by what is now a loose plastic cable tie.
If the magnet moves during my ride, all power, cadence and %PI readings go to zero.
My bike is a pretty standard Trek 5200- anybody have any ideas.
Also, any other Trek 5200 (or 5900) owners out there have any luck with putting in the spacers under the sensors? What height of spacers worked best? Any help/input would be greatly appreciated!
BTW My view is that the computrainer is so much more stable and believable when it comes to the power things, but its great to go out for a day w/ your 720i, break your butt out and come back, download, and relive the experience on a Polar plot, with all the bells and whistles!