Now I can't currently find the thread but this is an ongoing discussion on a motorcycle thread I belong to as well, as modern motorcycles actually have probably about as much metal in them as bikes so triggering lights can be a huge issue. There is a magnet type product out there that many swear by as being a solution to this problem. Alternatively in some states now this problem has been recognized and law is on the books stating that after waiting a "reasonable" amount of time that an individual on a motorcycle can proceed cautiously through a red light intersection. The rub of course is the definition of "reasonable" and will a cop pull you over regardless if he just sees the aftermath of you going through a red light however cautiously. I'll try to track down the link to the product talked up on the motorcycle thread. As an aside I'm curious if everyone adhere's to red lights when on their bike as its taken for granted in Madison that if an intersection is clear a biker will go through no matter the light, I've run a light in front of many a police officer and they don't pay any attention to it.

Riley