
I have another Sigma bike computer (wired) on one of my other bikes. Has been working flawlessly for over 5 years with one battery change. I decided to go wireless on my carbon bike so I went with the Sigma. The computer worked fine for about 10 months and then it started giving strange readings - mph never went above 4, trip route was skewed (compared to Map My Ride), eventually it just stopped logging any data. I've replaced both batteries and followed the troubleshooting tips on the Sigma website, all to no avail. I have contacted Sigma 3-4 times and received no reply. 2 year warranty is useless if there is no customer support. So, in general, save your money and find the best company to patronize.

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