http://www.greenlightstuff.com/trigger.html

I was sceptical... but got one of these for my gs500 to see if it worked... it does. I have them on all my bikes now. You just have to roll over the sensor. Before, there were lights I was getting stuck at that had sensors.. some never picked me up. With this thing on the bottom of the bike.. works fine. I would recommend it for sure. You can also in the mean time, put the bike in neutral, jump off really quick and smack the crossing button. I used to do that before I got the green light trigger cause in santa monica.. i would get stuck ALL the time.