I got the cheapie Supergo wireless, but ran into problems: The range is 60cm only, and I can't mount it on my handlebars because of that. I had it there and it worked originally, but as soon as the cooler weather set in, it stopped counting pulses on cold mornings. The transmitter is on the suspension forks as high as possible but it is still not enough. I had to mount the display unit on the top tube, and even there the distance is just inside 60cm.

The other thing I have against mine is it does not start auto, only shutdown auto. So sometimes I forget to switch it on.

For these 2 reasons I am looking to get a wired.