How much data do you need?

Why do you want wireless?

You can buy cheapie Schwinn at the department stores for $25.00 and it will give you speed and two distances but no cadence.

I have two wireless on my slow bikes and have had no major problems once they are setup and working, but I don't need cadence on those. My wife doesn't care about her cadence, and I am just along for a slow but fun ride. My road bike I went with a Cateye Strada 8 with the cadence for $35.00 at my LBS and it has the wires, but I did the install so they are not very noticable.