Wednesday I had the BMW Supplemental Brake Light added to my R1200RT. It came in handy on my first ride. I was on the way back from the dealership and a pickup truck was following way too close. The person in front of me made a last second decision to jam on the brakes and turn left. I grabbed my brakes, ABS came on, and the pickup managed to stop. Did my brake lights do the trick? I don't know for sure but it is reassuring to know that the supplemental lights are back there and blinking.