Fiido C21 - Lightweight Step over Urban Gravel Ebikes Skip to content
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Fiido C21 E-gravel & city E-bike

in stock
700 reviews
Urban communter electric bike with torque sensor, only 17.5kg.
Sale price£1,090.00 Regular price£1,635.00 Save £545.00
in stock
Size: Grey-M (160 cm -175 cm)
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Fiido phone holder

£25.00
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Mate Watch for Titan/C21/C22/C11/T1 Pro/Air

£90.00
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Rear Rack for C11/C21/C22/C11 PRO

£68.18
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Fiido Helmet

£60.00
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Rear Rack Bag for Fiido

Size: 385 mm*195 mm*160 mm
Capacity: 10L
Weight: 676g
Material: PU leather+EVA

£55.00
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Range Extender Battery for C21/C22/Air

£227.00
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Accessories
Extender battery will be delivered in 3 weeks.
Fiido phone holder
£25.00
Mate Watch for Titan/C21/C22/C11/T1 Pro/Air
£90.00
Rear Rack for C11/C21/C22/C11 PRO
£68.18
Fiido Helmet
£60.00
Rear Rack Bag for Fiido
£55.00
Range Extender Battery for C21/C22/Air
£227.00
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Created with Pixso.
Free Shipping
Created with Pixso.
2-Year Warranty
Created with Pixso.
30-Day Return
17.5 kg
Lightweight
Hydraulic Brake
Quick Stop
Torque Sensor
Advanced Pedal Assist
Low-Resistance Motor
Silent operation
9 Speed
Conquer hills
IP54 Waterproof
Ingress protection
Features at a Glance
Build
Weight: 17.5kg
Performance
Sensor: Mivice torque sensor
Range: Up to 100km
Motor: 250W brushless
Gears: 9-speed
Payload: 120kg
Brakes: Hydraulic disc brakes
Tires: 700c
User-Friendly Features
Waterproof: IP54 full-bike
Display: Centered HD color screen
Rider Fit
Height: 5'3" - 6'9" (160cm - 205cm)
Seat: Adjustable
What's In The Box?
C21*1
Fenders*1
Headlight*1
Pedals*1
Display*1
Taillight*1
Adapter*1
Charger*1
User manual*1
Kickstand*1
FAQ
  • 1. The bike's weight with battery?
    17.5 kg.
  • 2. Can I ride smoothly without power?
    Yes. Feels like a traditional bicycle when off.
  • 3. How long is the warranty?
    24 months on the whole ebike (excluding consumable parts). See Warranty Policy for more info.
  • 4. Any test ride locations nearby? Any service centers nearby?
    Yes, find them here.
  • 5. What certifications does it have? Is it compliant with UK regulations?
    UL2849,EN15194,UN38.3 and MSDS. Battery meets EU standard.
    UK compliant with 250W motor.
  • 6. Can I install a child seat? a bike trailer?
    Yes. For child seat, consider brands like Bobike, Thule, and OGK; its installation requires a rear rack, purchasable on our website. Child’s weight ≤ 25kg.
    Trailer compatibility: 11.8mm motor axle fits a 12.5-13mm hitch hole (≤5mm thick). For satety, ensure trailer wheel diameter < bike's.
  • 7. Is there a throttle?
    No.
  • 8. How to pay by installment?
    Select Klarna at checkout. Split into four or pay in 30 days, both interest-free. Monthly also available. Up to £3000 per transaction.
  • More FAQs
    Customer service: service@fiido.com;
    Tel: (852)56216918, 9AM - 10PM (GMT+8), Mon to Fri

Climb any hill in style, turning heads as you go.

The Story of the Fiido C21

Keven, the CTO at Fiido, found his inbox flooded with requests for 700c electric bikes. Customers loved their ability to handle gravel roads, but most models on the market were heavy and expensive. Driven by this feedback, Keven and his team created the C21, an affordable, lightweight 700c ebike. Designed with urban cyclists in mind, the bike features advanced smart technology and a striking urban aesthetic. The C21 made an immediate impact upon release, with Forbes praising it as one of the best gravel e-bikes, highlighting its "exquisite craftsmanship, beautiful appearance, and precise riding experience."
Prefer a step-through version of the C21? Check out the C11

Features

Lightweight
Ultra Light at 17.5kg, as light as a feather.
Torque Sensor System
Ensuring that every ounce of power is channeled optimally from both the left and right pedals.
Zero-resistance Silent Motor
Effortless and noiseless performance.
TEKTRO Hydraulic Brake
Efficient braking performance and enhanced control.
700c wide tires
Large diameter and wider widths for comfortable, high-performance rides on roads and gravel.
Long range
Up to 100 km, setting a new standard for lightweight models.

Nimble handling, sharp moves.

Explore more

Clear, HD display for visibility in any weather.
9-speed derailleur adapts smoothly to all terrains.
Dynamic turn signals enhance safety and visibility.
Mivice torque sensor for smooth, responsive pedaling.
Lightweight 17.5kg frame, easy to transport and store.
Hidden wiring for a clean look and easy maintenance.

Real-world Range Testing

Pedal Assist
ECO
Avg. Spd. 
15.41
 km/h
Range: 
96.74
 km
Normal
Avg. Spd. 
18.16
 km/h
Range: 
58.74
 km
Sport
Avg. Spd. 
19.62
 km/h
Range: 
50.57
 km
Turbo
Avg. Spd. 
20.92
 km/h
Range: 
44.55
 km
Turbo+
Avg. Spd. 
21.56
 km/h
Range: 
34.51
 km
(The results above were obtained with a rider weighing 75kg, in a flat road environment at 32℃. Please note that the cruising range can vary depending on riding conditions; refer to actual usage for more accurate information.)

The Brand

We listen to our customers, whose insights flow into our lab and merge with with our creativity and expertise. Fiido's mission is to create practical and artistic e-bikes that truly respond to customer needs. By optimizing R&D and supply chains, we also make e-bikes more affordable. This commitment has made us one of the fastest growing e-bike brands in the world.

Specifications

  • DETAILS
    Model Name
    C21
    Model Code
    C21
    Net Weight
    17.5 kg
    Payload
    120 kg
  • FRAMESET
    Frame
    700C aluminum alloy integrated battery urban gravel frame
    Fork
    Aluminum alloy thru-axle fork (thru-axle diameter 15mm)
    Headset
    Aluminum alloy bearing headset
  • E-SYSTEM
    Drive Unit
    Mivice M080 250W
    Battery
    DMEGC 208.8Wh
    Charger
    36V2A
    Display
    LCD 2.4 inch
  • DRIVETRAIN
    Rear Derailleur
    L-TWOO RD-5009-M
    Shifters
    L-TWOO SL-5009-9S
    Chain
    KMC X9
    Crank
    Aluminum alloy 52T
    Rear Cogs
    L-TWOO 9S(11-32T)
    Sensor
    Torque Sensor Torque Sensor Mivice S200
  • BRAKES
    Brakes
    TEKTRO HD-M275 Hydraulic Disc Brake
    Brake Levers
    TEKTRO HD-M275
  • WHEELS
    Front Hub
    Aluminum alloy double-bearing barrel axle hub (barrel axle diameter 15mm)
    Rims
    Aluminum alloy double-layer rim
    Spokes
    Stainless steel spokes with brass nipples
    Tires
    CST/KENDA 27.6*1.57
  • COMPONENTS
    Handlebar
    Aluminum alloy (Length: 640mm Maximum diameter: 31.8mm Minimum diameter: 22.2mm)
    Stem
    Aluminum alloy stem
    Grips
    TPR non-slip handle grip (Length: about 130mm)
    Saddle
    VELO vacuum full-fit saddle
    Seatpost
    Aluminum alloy clamp head seatpost (Length: M-300mm; L-350mm; Diameter: 30.9mm)

Geometry

All measurements provided in mm unless otherwise noted.
M L XL
Rider heights 5'3" (160cm) - 5'9" (175cm) 5'7" (170cm) - 6'5" (195cm) 6'5"(195cm) -6'9" (205 cm)
Wheel size CST 700*40C CST 700*40C CST 700*40C
A-Seat tube 510 550 610
B-Seat tube angle 73° 73° 73°
C-Head tube 150 170 190
D-Head angle 71.5° 72° 72°
E-Top tube length 585 600 630
F-Standover height 800 832 878
G-BB drop 68 68 68
H-Rear Center 445 445 455
I-Wheelbase 1066 1077 1106
J-Reach 402 411 428
K-Stack 597 618 660
L-Maximum seat height 1010 1085 1145
M-Minimum seat height 810 885 945
N-Total length 1790 1800 1815
O-Handlebar height 1010 1010 1030
P-Handlebar length 680 680 680

FAQ

Return and Refund
Can I return the e-bike if I’m not satisfied?

Yes. You can return the e-bike to the location provided by our after-sales customer service team. Refunds will be issued as long as the e-bike is returned within 30 days of purchase, unused, and in its original packaging.

Who is responsible for the return shipping costs?

If the return is due to a product defect, we will cover the shipping costs. Otherwise, the customer will be responsible for the return shipping fees.

How long will it take to receive my refund?

Refund processing times depend on the order status:

Before shipment (no tracking number issued): Refunds are processed within 3-5 business days.

After shipment (tracking number issued): Refunds will be processed within 7-10 business days once the returned items are received at our location.

Order Processing and Delivery
How long does it take to process and ship my order?

Orders for in-stock e-bikes are processed within 3-5 business days. Once shipped, delivery typically takes 5-10 days depending on your location. Overall, you can expect to receive your e-bike within 8-15 days.

How can I track my order?

Once your order ships, you’ll receive an email with tracking information to monitor its progress.

Repair and Warranty
What should I do if my e-bike needs repair?

If your e-bike requires repair, please contact our customer service team. We will guide you through the repair or replacement process. Our team specializes in after-sales service in the UK.

What is the warranty period for the e-bike?

We offer the following warranty coverage:

- 36 months on the frame.

- 24 months on the whole ebike (excluding consumable parts)

See Warranty Policy for more info.

Product Details
Is the display easy to replace?

Yes, modular design allows quick replacement within 10 minutes.

What does the app do? How does the bike connect to the app?

You can start the bike, track data, and connect with other riders with the app. Download the "Fiido" app and pair via Bluetooth.

Which factors contribute to the riding range?

Riding range is influenced by assist mode, terrain, wind conditions, temperature, surface type, traffic stops, rider's weight, load, and tire pressure etc.

Can the bike handle rough terrain?

Yes. You pedal lighter on moderately muddy, grassy trails or other uneven paths with torque sensor, 9-speed gearing, and gravel-style tires. Also, the Velo vacuum full-fit saddle absorbs shock for comfort.

What is the top speed?

25 km/h.

What's In The Box?

C21*1
Fenders*1
Headlight*1
Pedals*1
Display*1
Taillight*1
Charger*1
User manual*1
Kickstand*1

Unboxing video

Customer Reviews

Based on 700 reviews
85%
(596)
12%
(86)
1%
(10)
1%
(6)
0%
(2)
J
John Fitzgerald
The C-21 E-bike

What a great bike. Beautiful design. Perfect for getting around town. Fast enough and with peddle assist I still keep fit. The best thing I’ve bought for sometime…😎

S
Sven Stengel
Einfach nur gut!

Einfach super...easy aufgebaut... alles funktioniert.. sehr angenehmes fahren.

Die Box zu öffnen war wie Weihnachten...ein tolles Fahrrad.

Kann ich nur empfehlen!!!

F
Fabrizio Magnolfi
Bici veramente stupenda

Ho acquistato la C21 per riprendere l'attività fisica e usarla per il tragitto casa lavoro.
La bici è arrivata con un imballaggio perfetto e studiato al fine di non recare danno.
Ottima fattezza e componentistica, Cinese, da non invidiare niente a marchi ben più blasonati, anzi ....
La funzionalità è esemplare, anche a motore spento sembra di pedalare una bicicletta muscolare, visto anche il peso ridotto.
La ricomprerei? Sicuramente si .
Assistenza gentile e tempestiva , arrivata con parafango danneggiato me li hanno rispediti tutti e due.

M
Markus
Sehr gute Qualität!

Das Rad wurde unversehrt geliefert. Zusammenbau erfolgte problemlos mit dem mitgelieferten Werkzeug. Lediglich ein Speichenschlüssel fehlte. Der Antrieb ist ein Mivice drehmomentgesteuerter Hinteradnabenmotor (dort soll ja schließlich die Antriebskraft auch hin), darum sind am Hinterrad auch mehr Speichen als vorn) reagiert spontan und sehr intuitiv auf Pedaldruck. Der Freihlauf ist tatsächlich einer und ist der Motor aus, ergeben sich keine erhöhten getriebebedingten Pedalkräfte. Der Motor selbst ist nicht hörbar. Kettenschaltung und Bremsen funtionieren prima. Display und Licht topp. Ich bin schon mehrfach spontan auf das Design des Bikes angesprochen worden. Es wurden auch Fotos gemacht. Das niedrige Gewicht des Rades hat Erstaunen ausgelöst. Ein Betrachter hat binnen 1 Stunde gleich zwei Räder gekauft (für sich und seine Frau). Preisschätzungen durch Interessierte Personen lagen ab 3000.-€ aufwärts.. Umso größer war das Erstaunen ob des realen Preises. Ich pedaliere das Rad im "normal" Unterstützungsmodus. Fahre damit problemlos zwischen 20 und 30km/h im urbanen Umfeld. Zuerst dachte ich, die Batteriestatusanzeige sei defekt aber der Stromverbrauch ist tatsächlich äußerst niedrig. Real sind 60km Reichweite oder gar mehr sicher möglich. Wie zu erlesen ist, ich bin äußerst begeistert von dem Bike! Ihr habt alles richtig gemacht!

C
Customer
Amazing

Cumple con las expectativas leídas en otros reviews. Llegó en menos de dos semanas y todo perfecto. Batería justa. Bo esperes hacer rutas largas con asistencia, pero es perfecta para combinar piernas y motor. Ligera, bonita y discreta. Espero no tener problemas en el futuro.

Customer Reviews

Based on 700 reviews
85%
(596)
12%
(86)
1%
(10)
1%
(6)
0%
(2)
J
John Fitzgerald
The C-21 E-bike

What a great bike. Beautiful design. Perfect for getting around town. Fast enough and with peddle assist I still keep fit. The best thing I’ve bought for sometime…😎

S
Sven Stengel
Einfach nur gut!

Einfach super...easy aufgebaut... alles funktioniert.. sehr angenehmes fahren.

Die Box zu öffnen war wie Weihnachten...ein tolles Fahrrad.

Kann ich nur empfehlen!!!

F
Fabrizio Magnolfi
Bici veramente stupenda

Ho acquistato la C21 per riprendere l'attività fisica e usarla per il tragitto casa lavoro.
La bici è arrivata con un imballaggio perfetto e studiato al fine di non recare danno.
Ottima fattezza e componentistica, Cinese, da non invidiare niente a marchi ben più blasonati, anzi ....
La funzionalità è esemplare, anche a motore spento sembra di pedalare una bicicletta muscolare, visto anche il peso ridotto.
La ricomprerei? Sicuramente si .
Assistenza gentile e tempestiva , arrivata con parafango danneggiato me li hanno rispediti tutti e due.

M
Markus
Sehr gute Qualität!

Das Rad wurde unversehrt geliefert. Zusammenbau erfolgte problemlos mit dem mitgelieferten Werkzeug. Lediglich ein Speichenschlüssel fehlte. Der Antrieb ist ein Mivice drehmomentgesteuerter Hinteradnabenmotor (dort soll ja schließlich die Antriebskraft auch hin), darum sind am Hinterrad auch mehr Speichen als vorn) reagiert spontan und sehr intuitiv auf Pedaldruck. Der Freihlauf ist tatsächlich einer und ist der Motor aus, ergeben sich keine erhöhten getriebebedingten Pedalkräfte. Der Motor selbst ist nicht hörbar. Kettenschaltung und Bremsen funtionieren prima. Display und Licht topp. Ich bin schon mehrfach spontan auf das Design des Bikes angesprochen worden. Es wurden auch Fotos gemacht. Das niedrige Gewicht des Rades hat Erstaunen ausgelöst. Ein Betrachter hat binnen 1 Stunde gleich zwei Räder gekauft (für sich und seine Frau). Preisschätzungen durch Interessierte Personen lagen ab 3000.-€ aufwärts.. Umso größer war das Erstaunen ob des realen Preises. Ich pedaliere das Rad im "normal" Unterstützungsmodus. Fahre damit problemlos zwischen 20 und 30km/h im urbanen Umfeld. Zuerst dachte ich, die Batteriestatusanzeige sei defekt aber der Stromverbrauch ist tatsächlich äußerst niedrig. Real sind 60km Reichweite oder gar mehr sicher möglich. Wie zu erlesen ist, ich bin äußerst begeistert von dem Bike! Ihr habt alles richtig gemacht!

C
Customer
Amazing

Cumple con las expectativas leídas en otros reviews. Llegó en menos de dos semanas y todo perfecto. Batería justa. Bo esperes hacer rutas largas con asistencia, pero es perfecta para combinar piernas y motor. Ligera, bonita y discreta. Espero no tener problemas en el futuro.

Fiido Mate

Ready to upgrade your ride with intelligent connectivity?

Fitness Tracking

It records all your riding data, witnessing every breakthrough you make.

Syncing riding data
Health Monitor

It tracks your heart rate and blood oxygen to keep you aware of your physical condition.

Real-time health data tracking
Achieve your daily goals
Proximity Start

Just hop on and ride instantly. Your Fiido Mate is always ready for a seamless start-up.

The ebike starts automatically when your Fiido Mate is nearby and shuts off on its own when you walk away.

(Notice: Measurement results are for reference only and are not intended for medical use.)

Ride Smarter with Our App

Your rides are automatically synced so you can monitor them in detail at any time.

Facebook Group

Join the vibrant Fiido community to stay up-to-date and connect with fellow riders. Tell us what you want to see in our future products — our CTO is listening!
Join Now

Why Choose Fiido?

A great ride for a great price.

Fiido is a fast-growing Ebike brand that's had its fair share of ups and downs—but has proven that it has what it takes to rise above.

Beautiful, well-built, high-quality E-bike for this price segment.

The E-bike for People Who Say They'dll Never Get An E-bike.

It's something that commuters will love riding daily.

Customer Reviews

Fiido C21 Review - Does Not Look Like an E-bike!
My new favorite EBIKE! 🚲 Fiido C21
La meilleure option sans aucun doute est de l'utiliser pour aller au travail.
LOW KEY E-Bike With 1-Click Speed Unlock
Das stilvolle Aussehen ist sein unauffälligster Vorteil.
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