Fiido D21 Folding Electric Bike



The Fiido D21 electric bike builds on the success of the previous D11 model. The D21 has a torque sensor for perfectly smooth pedal assistance. This enables more precise and natural control of the motor power output without the need for a throttle. This sleek e-bike can take you anywhere, with both pedal assistance for easy climbing and battery power at your disposal to get you where you want to be fast.

The D21 is made from lightweight aerospace aluminium alloy and provides over 60 miles riding the range in power assist mode.

Free Mudguards Included

Vive Scooters UK is an authorised dealer for FIIDO in the United Kingdom.

Superior Motor

The D21 is equipped with a 250W of strong motor that provides a maximum speed of 15.5mph (25km/h) for optimum performance.

Removable Seatpost with Large Capacity Battery

The integrated seatpost contains both the battery and taillight to minimise parts and maximise efficiency.  

Three Distinctive Modes

Pure Electric Mode | Cyclic Mode | Power Assist Mode

Power Efficient Battery

11.6AH lithium battery allows a range of up to 30-60km in the pure electric mode and up to 100km in the power assist mode.

Foldable Design

Foldable design makes it extremely portable, ideal for travelling for urban commuting, shorter travels, daily errands and for so much more. The design also allows it to be extremely portable.

Bright Headlights and Taillights

FIIDO D21 comprises of some of the best-in-class Head and Tail lights making it one of the most comfortable rides while riding during the nights.

      Adjustable Seat and Handlebar

      A fully adjustable seat and handlebars allow users to adjust it to their preference. Thus, riders with different physiques can adjust the seat and the handlebar to their liking.

      Aluminum Alloy Chassis

      Built with premium-grade aluminium alloy materials for enhanced durability.

      Dual Disc Brakes

      High-quality disc brakes provide great stopping power.

      Shimano 7-speed 

      Equipped with Shimano 7-speed gear and chain, you can cycle with different speeds. Take in the scenery and enjoy the ride with effortless performance.

      Legal Disclaimer

      You can ride an electric bike in the UK if you’re 14 or over, as long as it meets certain requirements. Bikes that do not meet these requirements are not allowed to be ridden on UK roads, cycle paths or footpaths.
      We are unable to comment on the enforcement of these rules and cannot offer legal advice. The customer assumes all liability and risk associated with the use of electric bicycle products purchased from this website.

      More information on UK electric bike rules can be found on the website.


        Important Notice

        With the exception of "Click & Collect" and "Same Day Delivery" orders, this bike will be delivered packaged in a box.
        There is a possibility that you may need to make minor mechanical adjustments such as aligning the brake callipers and handlebars. All of the required tools and instructions are included in the box. If you are not comfortable with making such adjustments, you can take the bike to be serviced at a local bike shop, or opt for the "Click & Collect" or "Same Day Delivery" options at checkout if you are local to our London store.

        • Works related to adjustment and assembly are not covered under the warranty.
        • Please read the manual and observe the safety information included before riding the bike.


        • Model: Fiido D21
        • Voltage: 36V
        • Battery: 11.6Ah
        • Charging time: 7 hours
        • Pedal-assist mode range: 80-100km
        • Max speed: 25km/h / 15.5mph
        • Working temperature: -10~50°C
        • Frame material: Aluminium alloy
        • Colour: Bronze
        • Max load: 100kg
        • Net weight: 17.5kg(with battery)
        • Tire size: 20*1.75 inch
        • Bike size: 1480mm*570mm*1100mm
        • Folding size: 800mm*400mm*740mm
        • Weight & Size Product Weight: 18.5KG (12.9KG without battery)
        • Package Weight: 22.5KG
        • Product Size(L x W x H): 148 x 57 x 110cm (UNFOLDED): 84 x 40 x 59cm(FOLDED)
        • Package Size(L x W x H): 90 x 46 x 67cm

        Package Contents

        • 1 X FIIDO D11 Electric Bike
        • 1 X UK Charging Adapter
        • 1 X Wrench
        • 1 X User Manual (English)



        This e-bike is covered by the Fiido Warranty Policy. You will need to register your warranty within 15 days from delivery of the product.

        fiido authorised dealer

        Customer Reviews

        Based on 6 reviews
        Rob fennessy
        Great service, great bike!

        Just like to thank Vive Scooters for top service and fast delivery of this Fiido D21, its a cracking little bike! We didnt delay in adding a couple of mods, such as a rear rack, relocated the auxiliary tail light, phone and bottle holder, and a couple more funky mods to come. My girlfriend really enjoys cycling it to the horse tard 10km each way twice a day, and in a comparible time to taking the car. We especially like how it doesnt obviously look like an electric bike and how it tackles those climbs that will leave you a little worn out, overtaking lycra clad road cyclists. The only one downside is the display, unfortunately it doesnt have the functionality of the older D11 with odometer and ability to change wheel diameter. For our current use it doesnt affect us too much though. Thanks Vive for facilitating us getting hold of this little gem!

        Gordon Lobban


        James Gaffney
        Fiido D12

        Super quick delivery and absolutely love this bike. Fits in the boot of my small hatchback, and really pleased with the pedal assist. Hills no problem. Bought this as Im awaiting a heart bypass and it’s really good

        Does what it says!

        Really brilliant bike so far! been using it for commuting, battery life is really good! Plus delivery was quick!

        Only one downside is the seat battery has to be take with you everywhere as its quick release and anyone can just walk along and take it but other than that amazing little bike!

        Daz Manley
        Brilliant D21 ebike

        Awesome bike, really pleased. Arrived the next day, perfect service from Vive Scooters!

        We're here for you in case things go wrong

        All our new E-Scooters and E-Bikes come wih UK warranties. We have a Servicing & Repair workshop in London, UK. We provide free after-sales technical advice.

        We don't waste any time

        All our stock is located in and ships from the UK. We dispatch all orders within 1 Working Day (except custom built and pre-order products. If your goods arrive faulty, you can return them for a hassle free refund.

        Support British Business

        We are a UK based registered company. All our prices include VAT and we provide tax invoices.


        Electric scooters are not to be used on UK cycle lanes, footpaths or roads. You can ride an electric bike in the UK if you’re 14 or over, as long as it meets certain requirements. Bikes that do not meet these requirements are not allowed to be ridden on UK roads, cycle paths or footpaths. The customer assumes all liability and risk associated with the use of electric scooter and electric bicycle products purchased from this website.
        Fiido D21 Folding Electric Bike
        You have successfully subscribed!
        This email has been registered