Crowd-funding product Hammerhead is a bike navigation device and app that uses Bluetooth and GPS from your smartphone to guide you as you ride. Using light cues and signals, the Hammerhead sends turn-by-turn instructions to the rider without distracting screen displays. The app allows you to share routes, compete in real-time, and meet up with friends when already on the road. By pre-loading the route information from your smartphone’s GPS system, cell service is not necessary for navigation during a ride. The Hammerhead will be available in June 2014 and can be pre-ordered for $85 USD here.

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