Or for those who want a power meter that actually reliably works.

I had two Stages power meters for over a year. Nothing but trouble. Worked extensively with Stages to get my problems resolved to no avail, they even refurbished both of the units, one of them twice. 80% failure rate on long endurance rides over 80 miles, including four of five major event rides that I trained for for over 6 months, big timed climbing rides over 100 miles. My coach gets the data files and literally there's almost nothing he can say about them because of the extent of the losses.

The best thing that I can say for Stages is that it's inexpensive and they have good customer service, they did eventually give me my money back for both units.

I have a pretty decent understanding now of what the issues are with the Stages PMs and it's certainly not just a lack of two sided data. I moved to SRM power meters and guess what? No data issues at all. Night & day experience.