I've used the 580 cycling computer on 10 or so rides so far. For the most part things seem to work properly however on 2 rides I have found a problem with some of the data collected:
1) On one ride I had a spike in speed (mph) over several track points: 32.83, 79.75, 125.2, 99.59, 69.44, 38.18, 17.17 and then back to normal.
2) Then (after I upgraded to the most current firmware) I had a problem with my heart rate data as it spiked to over 200 bpm and up to 239 bpm over about 40 track points.
Can anyone explain why this might happen, is some part of my setup defective (H/W or S/W)?
What is the best way to fix the data so I can have useful information for these rides?
Thanks in advance for your help!