Forget about clicking through gears 1, 2, or 10. Enviolo uses a system of rotating spheres that allows you to "glide" through a 380% ratio range. You can find your perfect pedaling cadence down to the millimeter, regardless of the incline. A game-changer for trike riders. If you are forced to stop suddenly on a steep climb, there is no need to worry—you can downshift to the easiest ratio while completely stopped, making restarts effortless and safe. With a maximum torque rating of up to 100 Nm, the Heavy Duty series is purpose-built to handle the raw power of high-end mid-drive motors (like Shimano STEPS or Bafang systems) and a total vehicle weight of up to 250 kg.  The system is fully enclosed within the rear hub, protected from mud, grit, sand, and water. No bent derailleurs, no fragile hangers—perfect for our Wild One and Rebel models that know no boundaries. ay goodbye to the mechanical "clunk" and jolts of traditional shifting. The transmission is virtually silent, allowing you to focus entirely on the sound of the trail.