So I went to Performance with the intention of getting a cheap cyclocomputer, and a $50 wireless computer was on sale for $20...great! The box said "there's a possibility of interference from other electronic devices" but I didn't think too much of it.

Well, there are entire blocks of San Francisco where the interference is pretty severe. SBC Park with it's free WiFi is one, as are several others. Also the range is only 24" so I can't mount the transmitter on my rear wheel where I originally wanted it.

So are there any wireless computers that aren't so suceptible to interference and can be rear wheel mounted? If not I'm willing to go for a cheap wired computer so long as it's not obnoxious with wires everywhere.

I don't want to spend much, maybe $30 tops.

Thanks,

--Illah