Wahoo redesigned the traditional roller. ■ Quick-release adjustable wheelbase clamp accommodates a wide range of frame sizes. ■ Innovative safety tire grippers allow for securing bicycles up to 2.1 inches / 53 mm in tire width only on the front wheel. ■ Even cyclists who dont like balancing can easily experience the natural ride of the roller. ■ Easy to install and remove bicycles quickly transition from indoor training to outdoor riding. ■It is also great for environments where multiple riders use the same trainer. ■ No need to remove the front and rear wheels, making it ideal as a warm-up table for events or before a big workout. ■ Especially recommended for truck racers and professional riders who cannot change their equipment with bike checks before racing. ■ To achieve precise power measurement and smart trainer control, it can be seamlessly connected to the ANT+ power meter on each bicycle company. When using the function as a smart trainer, a power meter is required to attach it to your bicycle. Only speed data is transmitted when the power meter is not in use. ■ KICKR ROLLR Specifications: Compatible communication standards ANT+, ANT+ FE-C, Bluetooth; Load type: Magnetic. ■Max output: 1500W. *Interruption resistance of 450W depending on edicalent load even without power supply. ■ Compatible tire size: 700C ■ Compatible tire width: up to 2.1 inches (53 mm). ■ Compatible wheel base: approx. 96 cm - 14 cm Max Length: 165 Maximum Width: 31.4 inches (79.5 cm), Front Wheel Support Height: 34.0 inches (86.5 cm), Roller Height: 7.9 inches (20 cm); Reference Weight: 58.9 lbs (22.6 kg).