Skip to product information
36V 250W
75-100km/95-120km
36V 20Ah/25Ah
Max 25km/h
Chaoyang 20x2.5
140kg
Free Shipping
30-Day Returns
1 Year Warranty

EU-F20 Flex

Fold smart with dual-torque assist

EU-F20 Flex

Reviews
Regular price €999.00
Sale price €999.00 Regular price €2,599.00
Sold out
Use code MOTHER10 – Now only €899
Color: Haze Blue
Battery

Compatible Accessories

  • 12L Waterproof Bicycle Bag (Save more with ebike BUT not for separate sale)
    12L Waterproof Bicycle Bag (Save more with ebike BUT not for separate sale)
    €19.90

  • 35L Large Capacity Bicycle Bag (Save more with ebike BUT not for separate sale)
    35L Large Capacity Bicycle Bag (Save more with ebike BUT not for separate sale)
    €39.00

  • Combination Bicycle Chain Lock (Save more with ebike BUT not for separate sale)
    Combination Bicycle Chain Lock (Save more with ebike BUT not for separate sale)
    €19.90

  • Cityzen Helmet (Save more with ebike BUT not for separate sale)
    Cityzen Helmet (Save more with ebike BUT not for separate sale)
    €39.00

  • Portable Electric Air Pump(Save more with ebike BUT not for separate sale)
    Portable Electric Air Pump(Save more with ebike BUT not for separate sale)
    €99.00
Size & spec
EU warehouse · Ships in 2 working days · 2–13 days deliveryShipping details
View full details
Why you’ll love this
Effortless and space-smart, the F20 Flex features a dual-side torque sensor, double suspension, 20×2.5" puncture-protected tires, and a 3-step folding step-through frame. Perfect for smooth commuting and small-space living.
Explore the features

F20 Flex EBike

Enjoy a smooth, natural ride feel with space-saving folding convenience.
Torque Sensor Assist
The dual-side torque sensor delivers pedal-responsive support for smoother starts and better low-speed control.
Removable Battery
The removable 36V 20Ah/25Ah battery supports 75-100 km / 95-120 km range, plus 21700 cells, IPX5 daily protection.
Smooth City Power
The 250W rear hub motor provides comfortable support on city slopes with 43 Nm max torque and a 25 km/h EU-legal top speed.
Comfort-First City Ride
The suspension fork (40 mm) and suspension seatpost (15 mm) help smooth rough streets for a more comfortable commute.
3-Step Folding
The frame, handlebar stem, and pedals fold in three simple steps to save space for apartments, cars, and offices.
Enjoy a smooth, natural ride feel with space-saving folding convenience.
Torque Sensor Assist
The dual-side torque sensor delivers pedal-responsive support for smoother starts and better low-speed control.
Removable Battery
The removable 36V 20Ah/25Ah battery supports 75-100 km / 95-120 km range, plus 21700 cells, IPX5 daily protection.
Smooth City Power
The 250W rear hub motor provides comfortable support on city slopes with 43 Nm max torque and a 25 km/h EU-legal top speed.
Comfort-First City Ride
The suspension fork (40 mm) and suspension seatpost (15 mm) help smooth rough streets for a more comfortable commute.
3-Step Folding
The frame, handlebar stem, and pedals fold in three simple steps to save space for apartments, cars, and offices.

More Details

Easy Step-Through: The open step-through frame makes getting on and off effortless, with no high leg lift required for everyday outfits.
Simple Smart Control: The left-side color display shows speed, battery, assist levels (0–3), and lighting control, with 6 km/h walk assist for easy starts.
Anti-Puncture Tires: The 20 × 2.5" puncture-protected tires provide stable grip and help reduce flats on everyday rides.
7-Speed Gearing: The Shimano 7-speed gearing offers flexible cadence and easier riding across everyday city terrain.
Confident Braking: The front and rear disc brakes deliver predictable stopping power with easy maintenance for daily commuting.
Essentials Included: The included rear rack with cushion, fenders, and front light plus rear brake light make the bike ready to ride out of the box.

All the Specs You Need to Know

Size and fit
Tech specs
Specifications
  • [A] Max. Seat Height 100
  • [B] Min. Seat Height 87
  • [C] Standover Height 38
  • [D] Frame Size 40
  • [E] Max. Handlebar Height 120
  • [F] Min. Handlebar Height 109
  • [G] Bottom Bracket Height 28
  • [H] Top Tube Length 58
  • [I] Wheelbase Length 110
  • [J] Total Length 164
  • Bike Width 67
  • Folded Size 108*45*77
GENERAL

Range

75-100km/95-120km

Speed

Max 25km/h

Pedal Assist

3 levels

Folding Parts

Handlebar, Frame, Pedals

Bike Weight

26.5kg/27.2kg

Weight Capacity

140kg

Rider Height

165-198cm

Certifications

EN15194 + CE + E-Mark

Water Resistance

IPX5
ELECTRONICS

Motor

Rear drive, 36V, 250W(sustained) 430W(peak)

Motor Torque

43Nm

Battery

36V 20Ah/25Ah, 720Wh/900Wh, removable lithium-ion

Battery Weight

3.8kg/4.7kg

Charger

36V Output: 42V/ 3A

Charging Time

8-10 hours from 0% to 100%

Display

Color LCD easy read display, backlit, IP65

Sensor

Torque sensor

Lights

Front and rear lights (with brake lights)
COMPONENTS

Frame

6061 Aluminum Alloy

Handlebars

Aluminum 31.8mm, 660mm

Fork

Hard fork

Brakes

Mechanical disc brakes

Brake Rotor

160mm 6-bolt

Derailleur

Rear, Shimano 7-Speed

Shifter

Shimano 7 Speed Trigger

Wheels

20in, 13g, 36hole, double wall Aluminum

Tires

Chaoyang 20x2.5, 30tpi, puncture resistant

Tubes

Butyl rubber, schrader valve

Chain

114L

Chain Ring

42T

Cassette

Shimano 7-Speed 14-28T

Crankset

170mm

Pedals

9/16" Foldable pedals

Saddle

Flip-up foam saddle

Seatpost

Suspension Seatpost, Ø 27.2mm, 350mm Length. 15mm travel

Kickstand

Included

Rear Rack

Included

Fenders

Included
PACKAGE INCLUDED

1 x F20 Flex ebike

1 x Charger

1 x User manual

1 x Gift box (Includes 1*Inner tube, 2*Valve caps, 2*wheel reflectors, 2*Brake pads, 1*key chain, 1*Multifunctional tool, 1*13/15 Wrench)
*To ensure timely delivery and consistent product quality, Fafrees reserves the right to replace components with alternatives of equal or higher quality when necessary. This will not affect the product’s intended performance or safety.

See Fafrees in Action

Hero Image
×

FAQs

Are free gifts and accessories shipped together with the e-bike or separately?

Free gifts and accessories are shipped separately from the e-bike. While your e-bike is dispatched from our European warehouse, all accessories and complimentary gifts are sent from our warehouse in China. Delivery for these items typically takes around 10–15 business days.

We sincerely appreciate your patience. If you have any questions, please feel free to contact our customer support team: fafrees@fafreesebike.com, who will respond promptly during business days. At Fafrees, we are committed to putting our customers first and strive to provide you with a satisfying shopping experience.

How do I contact customer support?

If you have any questions regarding pre-sales inquiries, order cancellations, shipping details, or product recommendations, please reach out to our dedicated pre-sales team at: fafrees@fafreesebike.com.

If you have already received your e-bike and need assistance or have any after-sales questions, our support team is ready to help at: support@fafreesebike.com.

For partnerships, collaborations, or marketing-related inquiries, please contact our marketing department at: marketing@fafreesebike.com.

To help us assist you as quickly and efficiently as possible, we kindly ask that you choose the appropriate email based on your inquiry. Our teams are committed to providing friendly, prompt, and helpful support to ensure your Fafrees experience is smooth and enjoyable.

Are replacement parts and accessories available?

Absolutely! You can browse all available replacement parts and accessories for your e-bike by visiting our accessories page. We strive to keep a wide selection so you can find exactly what you need to maintain or upgrade your ride.

If you cannot find a specific part or accessory, don’t worry—our after-sales support team is always ready to assist you. Simply reach out to us at support@fafreesebike.com, and we’ll do our best to help you locate the right item or provide guidance on the next steps.

Additionally, you can check our nearest offline stores for repairs or to purchase parts in person via this store locator link. We recommend contacting the store via the provided email or phone before visiting to ensure the part you need is available and avoid any unnecessary trips.

We are committed to opening more offline stores to better serve our customers, address any concerns promptly, and provide a satisfying shopping experience.

Can I track my order after purchase?

Yes! You can easily check the status of your order using our Track Order page. Simply enter your order number and the email address you used when placing your order to view the latest shipping information.

If you encounter any issues or have questions about your shipment, feel free to contact our customer service team at fafrees@fafreesebike.com. We’re happy to help and ensure your order reaches you smoothly.

What is the warranty and after-sales service policy?

All Fafrees e-bikes and separately purchased accessories come with a 1-year repair warranty from the date of delivery, covering manufacturing defects. This warranty does not include normal wear-and-tear items such as tires, brake pads, chains, cables, grips, or cosmetic damage. Second-hand, modified bikes, and free gifts included with your order are not covered.

For added peace of mind, we have partnered with Xcotton Shipping Protection, a paid shipping insurance service available at checkout on our official website. This protection covers packages that are lost, misdelivered, partially missing, or damaged during transit, with claims handled directly by Xcotton. You can review the full terms here.

In addition, Fafrees offers extended warranty plans through Xcotton for accidental damage and product issues, including one-time battery replacement for natural degradation. Plans are available for 1-year, 2-year, or 3-year coverage and can be purchased within 60 days of the original order. Full details of the extended coverage are available here.

To request warranty service for manufacturing defects, simply take photos or a short video of the issue and email it along with your order number to support@fafreesebike.com. For issues with shipping or insurance claims, contact Xcotton directly at support@xcottons.com.

With this combination of standard 1-year warranty, optional shipping protection, and extended insurance, your Fafrees e-bike is backed for both manufacturer defects and unexpected incidents, ensuring a secure and worry-free riding experience.

View all