The Saris M2 Smart Trainer offers adjustable electronic resistance. It can replicate any workout up to 1500 watts and a 15% climbing grade. Easily connect to your favorite indoor cycling app via dual - band ANT+ FE - C and Bluetooth. Its electromagnetic response system takes care of the rest. With built - in speed, cadence, and power data, you can track and record performance without extra sensors. Key features include: accurate power readings within +/- 5%, precise workouts from controlled electromagnetic resistance, seamless connection to indoor cycling apps, integrated data without external sensors, a quiet 69 - decibel noise level at 20 mph. It fits common road and mountain bike frames with a steel quick - release skewer and has three rear dropout spacing settings (120mm, 130mm, 135mm). Optional thru - axle adapters are available for 142x12mm and 148x12mm. The 2' resistance unit roller works with 650b, 700c, 26', 27', and 29' wheels (up to a 2.0 tire), but not 650c or all 29er tires.

Using the Saris M2 Smart Trainer is easy. First, connect it to your indoor cycling app of choice using the dual - band ANT+ FE - C and Bluetooth. Make sure your bike is properly set up on the trainer. Adjust the rear dropout spacing according to your bike's frame. If you have a 142x12mm or 148x12mm wheel, use the optional thru - axle adapter. Once connected, the trainer will replicate the workout provided by the app. You can track your speed, cadence, and power without additional sensors. During use, keep in mind that the trainer is designed for specific wheel sizes and tire widths. It won't work with 650c wheels or all 29er tires. For maintenance, keep the trainer clean and dry. Check the connections regularly to ensure a stable workout experience. If you notice any issues with the resistance or data readings, refer to the user manual or contact customer support.