The Saris H3 is a direct transmission Home-Trainer . It is part of the category of Smart Trainer. You can connect it to various training software and compete against other cyclists around the world. No more monotonous training! Thanks to its new transmission system, it is extremely quiet. Only 59 decibels at 35km / h. Designed with numerous components meticulously calibrated to measure power, speed and cadence as well as a precisely balanced flywheel, it is able to simulate a 20% gradient and withstand a power of 2000 watts. Data control, reading and analysis are facilitated by the ANT + FE-C and Bluetooth FTMS connection , which results in total interaction of the home trainer with many applications (Zwift, Kinomap, trainerroad, etc ... ), the computer and any smartphone or tablet running IOS, Android, OSX and Windows. All you have to do is configure the desired course or training program and the H3 will take care of the rest by automatically changing the resistance.