FIIDO D21 Folding Electric Bike W/ Torque Sensor, 250W

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$1,199.97 $1,299.97

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The unique electric bicycle aesthetics that FIIDO endows D21 truly achieves the perfect balance between form and function. Redefining the aesthetics of electric powered bicycle design, breaking the conventional cognition, all your imagination will be reflected in the FIIDO D21.



Reach speeds up to 15.5 mph with the power-assisted function of this premium electric road bike. Complementing this with a torque sensor to sense the force put into the pedals is revolutionary, which can achieve low latency, accurate and maintenance-free. This improves the handling of the electric bike making it much more intuitive and enjoyable to ride, while also making it safer.


The folding electric bicycle is equipped with a powerful brushless geared motor hidden in the 20-inch rear wheel that provides tremendous power even with its compact size and light weight. This is the reason why this city electric bike can easily overcome rugged and steep roads with extremely low energy consumption.



Best of all, the fast electric bike is fitted with a removable seat post battery that is easy to replace and carry. The small electric bike is also convenient to adjust the seat height however you want.



  • Equipped with a lithium battery, the electric pedal bike will be fully charged within 7 hours. This way, you'll have an uninterrupted biking experience throughout your daily commute.
  • This affordable electric bike comes with both front and rear lights that allow to you travel even when it is dark outside. This way, you can feel safe riding this electric bike with throttle.
  • Made with high-quality aluminum alloy, the adult electric touring bike is extremely sturdy and reliable. It has a max load of up to 265 lbs and won't break down even with daily use.



Domestic USA Shipping: Your FIIDO D21 Folding Electric Bike W/ Torque Sensor will be packed and shipped within 1-3 business days and delivered to you between 5-10 business days.
Main Material(s)
Aluminum Alloy
Battery 36V 11.6AH
Electric System Fiido System
Charging Time 7 hours
Moped Mode Range 80-100 KM
Max Speed 25 KM/H
Working Temperature -10~50°C
Color Bronze
Max Load 265 LBS
Motor 250W Brushless Geared Motor
Power Assisted Range 110KM
Brake System Hydraulic Brake
Net Weight 17.5 KG (38.6 LBS)
Tire Size 20‘’*1.75"
Ebike Size 1480mm*570mm*1100mm
Folding Size 800mm*400mm*740mm
Warranty 1 Year
  • 1 x FIIDO D21 Electric Folding E-bike
  • 1 x Charger
  • 2 x Fender
  • 2 x Pedal
  • 1 x Open Spanner
  • 1 x Allen Key
  • 1 x Instruction Manual (Click HERE)
                                Return Policy
                                To be eligible for a return, your item must be within 15-day period. You must keep the original packaging and the bike must be repacked back into the original packaging when you send it back to us. Meanwhile, we promise that all the electric bikes our customers receive are brand new, we will never sell any opened box, refurbished or clearance bikes to you, as well as batteries. So please note that all the returned ebikes, as well as batteries, if the return claim is valid the customer will receive a refund for the amount of the purchase price minus a repacking and restocking fee of 20%.

                                How To Return
                                Contact our Customer Service Department at to approve the return within 15 days. We have helpful suggestions if you are considering a return due to performance of the item, sizing, or for any other reason. Please keep in mind that an exchange for a Fiido product better suited to your needs is also possible. After the 15-day period expires, the product cannot be returned to Fiido. All returns must be repacked back into the original packaging when you send it back to us. Once the Return Authorization is issued, we will provide you with a prepaid return shipping label. Once your return is received, we will process refund within 2-3 weeks. Your refund will be credited back to your original method of payment. Once your refund has been processed, it will take 7 to 10 business days for your bank to process the credit and apply it to your account. Note: the customer must have written Return Merchandise Authorization (RMA) number from Fiido. If customer return the product without it, a refund will not be issued and the customer will have to pay for the shipping of return.