Tod Baker has bought a second hand bike which has a wheel magnet and wireless sensor fitted to it; he wants to know how to tell which computer they will work with? We give him our suggestions. Question: I bought a used bike with a wireless computer sensor on the front wheel & fork but the previous owner did not know where the computer was. How can I find the computer that is compatible? Hi Tod. I wouldn’t waste my time trying to find out because buying a computer to match the sensor