Not quite sure if I believe it or not, but someone has made up one of those ever-so-American "how to" videos suggesting that if you bung a couple of neodymium magnets on the bottom of your bike, it will improve your hit-rate at triggering inductive loops at traffic lights... <[URL]http://www.wonderhowto.com/how-to/video/how-to-trigger-green-traffic-lights-78256/>[/URL] Fine in theory. Not so sure about practice. Riding over the edge of a loop and thumbing the starter works for me. GB