“Lumos is the world’s first smart bike helmet that beautifully integrates lights, hard brake, turn signals, and helmet into a single cohesive whole.”
Check out this teched out bike helmet by Lumos ($169)with all the signaling lights you might find on a car. If you bike in the city, being predictable can be your best asset for remaining safe in traffic. Technology like this not only increases visibility but allows bikers to share signal while keeping both hands on the handlebars.  If you have an urban biker in your life, consider the Lumos as the perfect gift. 
