10 in stock (can be backordered)
Many fans told us that D11 needs torque sensor, so D21 is here.
Complementing this with a torque sensor to sense the force put into the pedals is a significant improvement,which can achieve low latency、accurate and maintenance-free.This improves the handling of the bike making it much more intuitive and enjoyable to ride, while also making it safer.
The 35nm 250W brushless geared motor hidden in the 20-inch rear wheel provides tremendous power even in compact size and light weight, which is the reason why it can easily overcome rugged and steep roads with extremely low energy consumption.
The battery is concealed in seat tube, making it nearly tantamount to an ordinary bicycle at first glance, nevertheless, the range can still reach 100KM under the electric moped mode despite being so compact. Furthermore, the battery is removable meaning that you may get it powered anywhere at any time.
The concise design with integrated seat-post that contains battery and taillight, reducing the quantity of components and improving efficiency to the full extent. In addition to the utilisation of aerospace-grade aluminium alloy frame, the layout of the model conforms to the ergonomic design specifications, presenting comfortable riding experience with height-adjustable leather seat and the light self-weight of 12.9kg only.