The Zwift Cog is removable, allowing a conventional 9- to 12-speed cassette to be mounted, and the trainer can be used with all other apps. The Easy Start feature makes it easier to resume intervals after short breaks while pedaling and helps maintain the continuity of effort. The combination of the integrated power meter and 10 Hz data transmission allows Zwift to quickly recognize when power drops to zero. The Justo 2 surpasses its predecessor by integrating Wi-Fi connectivity. The Wi-Fi connection supports 2.4 GHz wireless networks and allows the trainer to automatically search for firmware updates. Enhance realism with Rizer, the gradient simulator with integrated steering, which tilts the bike in sync with the virtual course, and Aria, the intelligent fan that adjusts airflow based on your training data to provide comfort and unparalleled realism during indoor training. The Justo 2 includes both Flex-Feet sets designed to introduce lateral movement into the trainer, making indoor pedaling feel more natural, smoother, and better aligned with your biomechanics. The red set allows for lateral movement of up to 7° for a more dynamic riding experience. The black set offers a sway of 4.5° for a more stable and controlled response.