There are many cyclists who only occasionally sit on the saddle of their everyday bike, using it mainly on familiar routes – such as for commuting – or who take weekend trips from time to time. If you belong to this group of bikers, you probably don't need a high-tech navigation device that shows and analyzes every detail of your cycling kilometers. However, you are likely interested in the distances you cover and how fast you are going. That's exactly why we developed the Protos series for you. If you simply want to read the information without having to do anything yourself, the Protos 105 (wired) and the wireless Protos 205 are your ideal devices for the handlebars. The four-line display continuously shows the time, ride time, speed, and distance covered. Minimalistic, reliable, and easy to read – this basic information is available to you as soon as you start riding, and the Protos will remind you every two years to replace the battery. Main functions: with speedometer, type: wired, connection: wired. Functions: distance functions: total kilometers, time functions: time. Power supply: power source: battery.