Many fans have told us that the D11 needs a torque sensor, so the D21 has it.
Accurate torque sensor
The addition of a torque sensor that allows you to feel the force acting on the pedals is a significant improvement. Which results in less delay, accuracy and maintenance. This improves the handling of the bike, making it easier and more enjoyable to ride.
SPECIALLY DESIGNED BATTERY
The battery is hidden in the seat tube, making it look like a normal bike at first glance. However, despite this compactness, the electric bike has a distance of 100 km. In addition, the battery is removable, so you can charge it anywhere, anytime.
RELIABLE FOLDING CONSTRUCTION
Reliable design with integrated seat post with battery and tail light. Reducing the number of components and increasing efficiency to the fullest. The ergonomically designed frame provides a comfortable ride, and the height-adjustable leather seat easily accommodates people of all heights.