Would anyone be able to advise me please on an inexpensive cycle computer that I can fit to my electric bike.. I have tried 2 already both of which were very difficult to fit , in the end I gave up. I go out on my bike most days and ride an average of what I thing is about 18 miles but never sure. When I try to fit the sensor to the frame no matter where I tried to fit it the magnet was always too far away from the sensor. I cant justify an expensive one as I am too old to be going very far but I would like to know, speed, time, distance, heart rate, calories. In addition to this when I go out the battery indicator has 5 levels but I have no idea how far I can go and though the computer might be helpful inworking it out.. Thank you