Totally different thread than I was expecting, great info and I'll be doing it soon, but since I didn't see anyone mention it, the first article I read about using HDD magnets on a bike, was to attach a few to the bottom of the bike at a low spot as an aid to tripping the sensors at stoplights. Supposedly it's very effective. Think I'll be taking a few old drives to the rifle range, total destruction is the only true security.