I've had wireless in the past. One of the drawbacks to wireless is that your top speed function becomes useless. Going under power lines can produce some strange readings; I would regularly hit 300+ mph on the same uphill every week. Not even wired computers are immune, though. I discovered the hard way that electric fence pulses will trigger the wheel sensor - and you will accumulate mileage at a very slow pace. It absolutely ruins your average speed for the ride.