Fiido C21 - Lightweight Step over Urban Gravel Ebikes Skip to content

Fiido E-Gravel C21 Electric Bike

700 reviews
Urban communter electric bike with torque sensor, only 17.5kg.
Sale priceC$2,709.00
Model: C21
Size: Grey-L
Ultra-Lightweight at 17.5kg
Sophisticated Torque Sensor Technology
Whisper-Quiet, Zero-Resistance Motor
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External Battery for C21/C22/Air

C$374.00
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Fiido E-Gravel Rear Rack

C$112.50
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Mate Watch for Titan/C21/C22/C11/T1 Pro/Air

C$148.50
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Rear Rack Bag for Fiido

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

C$90.00
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Fiido Helmet

C$99.00
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Accessories
External Battery for C21/C22/Air
C$374.00
Fiido E-Gravel Rear Rack
C$112.50
Mate Watch for Titan/C21/C22/C11/T1 Pro/Air
C$148.50
Rear Rack Bag for Fiido
C$90.00
Fiido Helmet
C$99.00
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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 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
Rider heights 5'3" (160cm) - 5'9" (175cm) 5'7" (170cm) - 6'5" (195cm)
Wheel size CST 700*40C CST 700*40C
A-Seat tube 510 550
B-Seat tube angle 73° 73°
C-Head tube 150 170
D-Head angle 71.5° 72°
E-Top tube length 585 600
F-Standover height 800 832
G-BB drop 68 68
H-Rear Center 445 445
I-Wheelbase 1066 1077
J-Reach 402 411
K-Stack 597 618
L-Maximum seat height 1010 1085
M-Minimum seat height 810 885
N-Total length 1790 1800
O-Handlebar height 1010 1010
P-Handlebar length 680 680

FAQ

About the Product
When can I expect my order to be shipped?

We ship products sequentially based on orders from different countries and regions.

Can the battery be removed?

The battery can be removed, but frequent removal is not recommended to maintain the bike's overall design integrity. If you need to charge the battery separately, we suggest purchasing an extender battery for convenience.

What if I need a spare battery?

A range extender battery is available for purchase at the top of this page.

What's the special about torque sensing?

Fiido E-gravel uses a Mivice motor, a torque sensing system, and Fiido's exclusive torque algorithm. This setup instantly measures your pedaling power and provides real-time assistance for an intelligent and effortless riding experience.

How many levels are in power assist mode? And what're their difference?

Fiido E-gravel offers five power-assist modes: Eco, Normal, Sport, Turbo, and Turbo+. These modes range from low to high power output. Eco mode offers the most energy efficiency, while Turbo+ mode delivers maximum power and speed. You can switch between modes based on your cycling needs.

What is the difference between mid-mounted gauges and other gauges?

The new Fiido mid-mounted modular display uses cell phone screen technology, making it clearer and better waterproofed. Positioned centrally, it aligns with most riding habits, and the backlit buttons enhance visibility for night riding. This display offers a safer, more user-friendly design.

Is the display easy to repair and replace?

Yes. This innovative modular display is designed for easy replacement and can be swapped out in just 10 minutes.

What are the advantages of connecting my bike to the Fiido Mate smartwatch or Fiido app?

The Fiido E-gravel is designed to offer a more scientific and healthier cycling experience. By connecting to the Fiido Mate or app, you can start the bike effortlessly and monitor real-time fitness data like heart rate and blood oxygen levels during your ride. Additionally, you can share and exchange cycling insights with enthusiasts around the world.

Why can I unlock the bike with the proximity start function via the Fiido Mate Smartwatch, but the Fiido App can't?

The app may be easily closed by iOS or Android background processes when not in use, causing it to enter deep sleep and making real-time activation unreliable. To prevent user inconvenience, this feature was not implemented for the app. However, you can still explore other exciting features through the app.

Is it possible to ride in rainy weather?

Yes, the Fiido E-gravel is IP54 waterproof, and the central display is IP67 waterproof. However, for safety reasons, we do not recommend riding in severe weather conditions.

How far can I ride on a single charge?

The Fiido E-gravel can be fully charged in just 3 hours, supporting a range of up to 80 km per charge. Please note that actual range may vary depending on riding conditions.

Are there any extra accessories are available?

The bike package includes a pair of fenders, a kickstand, a new mid-mounted display, a headlight, and a taillight. We’re also offering an exclusive extender battery, rear rack, and front basket for the Fiido E-gravel, which will be available for purchase soon. Stay tuned to Fiido for the latest updates.

I want to attach a child trailer to the C21/C22. What size hitch is compatible?

The rear axle thread of the C21/C22 is M12x1.25. A trailer hitch compatible with this size can be installed.

What certifications does this product have?

This E-bike has already obtained UN38.3, MSDS, CE, and FCC certifications, ensuring your riding safety.

Do I need to insure this E-bike?

Insurance policies vary by country. We recommend consulting your local insurance provider to confirm whether purchasing insurance is necessary.

Can I install a bottle cage?

Yes, here are the standard specifications:
Bottle cage hole spacing: 64mm
Screw specifications: M5×P0.8×14

What items are included in the full bike package?

The box includes:C21*1, Fenders*1, Headlight*1, Pedals*1, Display*1, Taillight*1, User Manual*1, Charger*1, Stand*1.

How long is the warranty?

The warranty periods are as follows:
(1) Frame: 36 months
(2) Display instrument, Controller, Charger, Main wiring harness, Fork, Handlebar, Stem, Seatpost: 12 months
(3) For other components, please refer to our warranty policy: Warranty Policy

Can I return or exchange a product with Fiido?

Yes, if you encounter major quality issues or significant defects within 30 days of receiving the product, you're eligible for a return or exchange. See our return policy page for more information.

Shipment
When will I receive the bike and accessories?

Normal orders take 3-7 business days for delivery.

Note: If it is during a pre-sale period, please check the shipping time information on the product page.

Do I need to pay for shipping and duties?

Shipping and duties are free for the UK, US, and EU, though delivery is unavailable in a small number of regions. For more information, please visit: fiido.com/pages/shipping-delivery.

Other
Do I need to pay any extra tax?

The price you see for the Fiido E-gravel is the total amount you’ll need to pay. Rest assured, Fiido will not charge you any additional taxes.

How long is the warranty?

Most parts of the bike come with a one-year warranty. Please check our warranty page for more details.

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

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.
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 our Fiido Facebook community, a vibrant hub where you can share ideas, discover the latest updates, and connect with other users.
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

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.

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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.

 

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