The first GPS satellite was launched in 1974 while the 24th was launched in 1994. The GPS satellite system is operated by the United States Department of Defense and the use of this system is free for anyone. Most motorcycle riders now use these GPS devices, and one of the most popular motorcycle GPS units in the market today is the Garmin Zumo 665. This device is a motorcycle-friendly navigator with stereo Bluetooth, XM satellite radio, weather, and traffic.
It features a bright 4.3″ touchscreen color display that puts all the information you need in an easy-to-read format as you travel down the road. It also has a glove-friendly intuitive interface that makes entering information as easy as shifting gears. The wide sunlight-readable display is designed for easy navigation, whether you are riding during a bright day or a moonless night. It also comes in a rugged waterproof case that will resist fuel sprays and ultraviolet rays.