Product Reviews

Green Light Trigger ™
$11.95

Kauffman Marketing, Inc.
www.greenlightstuff.com/trigger.html

The Green Light Trigger™ attaches to the bottom of any bike and helps make the bike more "visible" to traffic signal detectors. Bikes with Triggers get stuck at red lights far less often than those without.

How it works

Traffic signal sensors are essentially metal detectors buried in the road surface. These "inductive loop" sensors are easy to spot because they have a circular, square, or diamond-shaped saw cut in the pavement just before the intersection. There is a weak radio frequency field over the coil, and a large inductive mass disturbs that field. Loop detectors are meant to pick up the presence of large masses of metal - like cars and trucks - sitting still over the detector loop.

Most modern bikes don't have enough inductive material in their frames to trip the sensor, and what they have tends to be oriented vertically above the loop (making it harder to sense) so we get stuck.

The Green Light Trigger emits a wide and powerful magnetic field that when passed over a detector loop, disturbs the loop's field, simulating the arrival of a much larger vehicle. When the control computer sees that signal, it knows someone's there, and the biker gets a green light, just like everyone else.

Review

I glued this to the bottom of my front fairing on the inside where it couldn’t be seen and was less likely to fall-off. And while I enjoy breaking laws as much as the next person, driving through intersections after giving-up on the light is not my idea of fun. This little gem was well worth the $11.95.

Reviewed by Man on Fire. Visit this product review in our Forums for more opinions.