What kind of computers do you guys recommend? I'd prefer something wireless/easily detachable. I don't need GPS or anything, just miles, speed, avg. speed - that kind of thing. Also, please let me know if it's easy to install, or if I'm better off taking it to a shop for installation. I had one on my bike a couple years ago, but the shop installed it. It looked like it worked via magnets, and I figured you had to be pretty careful about the wheel diameter/magnet placement to get it right, but I really don't pretend to understand it...
Thanks!
