Fafrees F20 vs Fafrees Mountain Electric Bike

By the ZapRide editorial team · Updated 2026 · How we test & score

We compare the Fafrees F20 and the Fafrees Mountain Electric Bike across every dimension that matters - our scores, the key specs, and how each performs on the things you will actually notice day to day.

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At a glance

Fafrees F20Fafrees Mountain Electric Bike
Our score9.2/109.6/10
Best forCommuters and flat-dwellers who need to fold and store the bikeEveryday riding and commuting
Not ideal forRiders wanting a premium-brand bike or shop servicingRiders wanting a premium-brand bike or shop servicing
BrandFafreesFafrees

Motor and Power

Fafrees F20

Power on this electric bike comes from a rear-wheel 250W high-speed brushless motor paired with a 36V battery system. The manufacturer claims a maximum torque of 40N·m and a maximum speed of 25km/h when using the motor-assisted setup. The rear drive layout is described as easier to handle and better at traction, which can help on mixed surfaces during commuting. The controller limits assist to the stated UK-legal 25km/h motor-assisted cap, so acceleration feels steady rather than instant. When riders switch between power and pedal assist, response changes as expected.

Fafrees Mountain Electric Bike

Power comes from a 250W brushless motor rated at up to 45Nm of torque, paired with a 36V removable battery. This electric bike review focuses on steady assistance rather than extreme bursts. The fafrees ebike review describes three working modes: electric mode, pedal assist, and manpower, along with cruise control that helps hold a rider-selected speed by managing throttle. There are five pedal-assist levels for quicker starts and acceleration, while maximum assist speed is 25km/h.

Battery and Range

Fafrees F20

Battery and range matter because the Fafrees uses a 36V battery system to power its rear 250W brushless motor, so real-world distance depends on how the rider uses electric power compared with pedal assist. It has a removable 648Wh battery, which the manufacturer links to up to 43 to 56 miles in electric mode, or 75 to 93 miles with pedal assist. Higher levels of assist, faster speeds and more stops reduce range, while steadier pedalling helps. For shoppers comparing The electric bike options, the Fafrees price should be weighed against these mode-based limits.

Fafrees Mountain Electric Bike

On the Fafrees, battery power comes from a detachable 36V pack that can be taken indoors for charging. The battery is rated at 15Ah, although the manufacturer text also lists 13Ah. It is described as good for up to 100km per charge, and the specifications also state an overall range of up to 100 miles. Range depends on the riding mode, because electric-only use draws power faster than pedal assist. For budgeting, potential buyers in the electric bike review may weigh the Fafrees price alongside this range claim.

Ride, Gears and Hills

Fafrees F20

For hilly routes and mixed surfaces, the electric bike's ride setup is supported by its 7-speed gearing and rear-drive motor torque, helping riders maintain control as the road steepens. The Fafrees F20 Pro review notes that the rear-drive motor sits at the back, which can feel steadier on uneven ground, while handling stays predictable. Shifting through seven speeds supports different effort levels when climbing. With up to 40N.M torque and a maximum assist speed of 25 km/h, steeper sections are easier to pace, although unspecified hill lengths may still require pedalling. The Fafrees pros and cons also reflect the balance between gearing control and its 25.5 kg weight.

Fafrees Mountain Electric Bike

Riding on the electric bike depends heavily on how the bike is set up for hills, because the motor assistance and the 21-speed gearing work together rather than as separate systems. On the steepest climbs, it tends to start best in electric mode or pedal assist mode, with the rider shifting early. Lower gears help keep cadence steady, while the 250W motor and five pedal-assist levels reduce strain. Push mode can also help on very steep sections. The 80mm front suspension smooths out bumps, although heavier riders may feel less grip. Overall, the Fafrees Hailong One review places the balance of pros and cons firmly in rolling-hill territory.

Brakes and Safety

Fafrees F20

With safety in mind, the electric bike uses dual mechanical disc brakes with front and rear rotors to improve stopping control on wet or uneven surfaces. The brake levers are power-offer, so braking can cut assistance when needed. The 160mm disc size suggests strong bite for daily commuting, but mechanical systems still need routine cable and pad checks. Riders should test braking before busy rides, then confirm lever feel is consistent in all weather. For 7-speed use, smooth shifting helps avoid sudden pedal load changes that can affect braking stability.

Fafrees Mountain Electric Bike

Braking on the Fafrees focuses on predictable road control, but the article does not specify the brake type, rotor size, or exact stopping performance. Safety in the electric bike review also depends on setup, tyre choice, and rider skill, especially given the 80mm front fork travel. Before riding in the UK, riders should confirm local rules on legality, as the bike is described within the 250W EAPC pedal-assist limit.

Build and Frame

Fafrees F20

The Fafrees uses a folding frame designed to make storage and transport easier once the bike is collapsed for carrying or for use in small spaces. It is presented as a best folding electric bike, using a sturdy layout that supports 7-speed shifting and disc braking, with a 25.5 kg weight that affects carry lifts. The frame incorporates a 36V system powered by a removable 648 Wh battery. A rear 250W motor drives the build, prioritising balanced traction, but the folding hinges mean a careful setup check may be useful before rides.

Fafrees Mountain Electric Bike

The Fafrees's safety and control rely on more than stopping power, and the build and frame are a large part of how it behaves at speed and over uneven ground. The electric bike review points to an aluminium frame built for everyday durability, paired with 26-inch wheels to help maintain traction and line. A mechanical front fork with 80mm travel is included to help smooth bumps and reduce rider fatigue. Most assembly is pre-set at around 90% pre-assembled, with plug-and-play wiring intended to make setup simpler.

Folding and Portability

Fafrees F20

Folding and portability matter on the electric bike because the frame is designed to collapse for carrying or storage in smaller spaces, rather than staying rigid like a standard commuter bike. In day-to-day use, the folding design helps when parking indoors, using lifts, or loading into a car boot. At 25.5 kilograms, though, it still requires two hands for safer handling, especially after folding. The 648 Wh removable battery supports practical transport since it can be removed separately. Buyers comparing this electric bike best price UK to listings on The Fafrees should factor in this folding convenience, while also planning for the bike's weight.

Fafrees Mountain Electric Bike

How portable is this electric bike for day-to-day use, especially if storage space is limited? The folding focus is designed to make stowing easier than a standard The Fafrees electric bike, which is intended to suit flats and small garages. A major portability aid is the removable 36V 13Ah battery, allowing charging indoors without moving the whole frame. At 23 kg, lifting and carrying a fully assembled bike is still a consideration.

Who Is This Electric Bike For?

Fafrees F20

This electric bike is aimed at riders who need an e-bike that can handle varied city routes and rougher terrain, while still being practical to store or move when space is limited. It suits electric bike for adults who commute on changing surfaces, because the 250W rear-drive motor and fat tyres are built for stability. It also suits riders considering the Fafrees F20 Pro for longer day trips, since the 648Wh battery is rated for up to 43-56 miles in electric mode, or 75-93 miles with pedal assist. At 25.5kg, it folds for transport, but carrying it still takes effort.

Fafrees Mountain Electric Bike

The Fafrees Hailong One is aimed at riders who want a capable e-MTB-style setup for mixed roads, where comfort on rough sections matters, and where storage or charging can be handled without much fuss. It suits an electric bike for adults who expect pedal assist up to 25 km/h, using five assist levels plus electric mode, with push help available for climbs. A removable 36V battery and 80 mm front suspension support everyday commuting and weekend rides that include bumpy paths. Whether the electric bike is any good depends on whether comfort and simpler ownership are the priorities.

Fafrees F20: pros

  • 250W motor
  • Range up to 150 miles
  • Removable-style 36V 18Ah battery
  • Disc brakes
  • Folds for storage and transport

Cons

  • Heavier than a non-assisted bike, so lifting and storage need thought

Fafrees Mountain Electric Bike: pros

  • 250W motor
  • Range up to 100 miles
  • Removable-style 36V 15Ah battery
  • 21-speed gears

Cons

  • Heavier than a non-assisted bike, so lifting and storage need thought

Our verdict

Our pick is the Fafrees Mountain Electric Bike (our score 9.6/10) - A practical electric bike with 250W motor and range up to 100 miles, best matched to your terrain and how far you ride. The Fafrees F20 is still worth it if it is cheaper when you check, or if it better matches your specific needs.