I bought a wireless Cateye for a bike that I'm building up. I like the idea of the cleaner look of a wireless. Plus I've had two wires broken when mechanics have worked on my bike. (Separate locations, I don't go to either one any more.) Despite that, after reading this thread, I'm thinking about switching back to a wired model.
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The rider in my avatar is David Etxebarria, not me.