1. Introducció
Thank you for choosing the Fafrees F20 X-MAX Electric Bicycle. This manual provides essential information for the safe operation, maintenance, and troubleshooting of your e-bike. Please read this manual thoroughly before your first ride to ensure proper use and to maximize your riding experience.
The Fafrees F20 X-MAX is a versatile folding electric fatbike designed for various terrains, offering a powerful motor, long-range battery, and a comfortable triple suspension system.
2. Informació de seguretat
La vostra seguretat és primordial. Seguiu sempre les següents pautes de seguretat:
- Porteu sempre casc i equip de seguretat adequat quan conduïu.
- Familiaritzeu-vos amb les lleis i regulacions de trànsit locals relacionades amb les bicicletes elèctriques.
- Feu una inspecció prèvia a la conducció abans de cada ús, comprovant els frens, els pneumàtics, la bateria i els llums.
- No conduïu sota els efectes de l'alcohol o les drogues.
- Adjust your speed to suit road conditions, weather, and your riding ability.
- Ensure all folding mechanisms are securely locked before riding.
- Keep hands and feet away from moving parts, especially the chain and wheels.
- No supereu la capacitat de càrrega màxima de 150 kg.
3. Components mésview
Understand the main parts of your Fafrees F20 X-MAX electric bicycle.

Figura 3.1: Acabatview of the Fafrees F20 X-MAX Electric Bicycle, showcasing its fat tires, folding frame, and integrated battery.
- Marc: High-strength steel folding frame.
- Motor: Rear hub brushless motor with 65 Nm torque.
- Bateria: Removable 48V 30Ah (1440 Wh) Samsung cell lithium-ion battery.
- Visualització: High-resolution color LCD display with USB charging port.
- Frens: Hydraulic disc brakes (160mm pads).
- Suspensió: Triple suspension system (front fork, rear shock, seat post shock).
- Pneumàtics: 20 x 4.0 inch pneumatic fat tires.
- Engranatges: Shimano 7-speed derailleur.
- Llums: LED headlight with horn, rear light with brake light and turn signal.
- Bastidors: Practical front carrier and stable rear luggage rack.
4. Muntatge i muntatge
Your Fafrees F20 X-MAX comes partially assembled. Follow these steps for final setup:
- Desembalatge: Carefully remove the e-bike and all accessories from the packaging. Check the contents against the packing list. The package includes the F20 X-Max e-Bike, charger, tool kit, user manual, and a gift box with inner tube, valve caps, spokes, wheel reflectors, battery fuses, brake pads, and a keychain.
- Desplegant el marc:Locate the main frame hinge. Release the safety latch and unfold the frame until it clicks into place. Secure the locking mechanism firmly.

Figura 4.1: The triple folding design of the Fafrees F20 X-MAX, showing the frame, handlebar, and pedal folding points for compact storage and transport.
- Muntatge del manillar: Insert the handlebar stem into the fork tube and tighten the quick-release lever or bolts. Adjust the handlebar height (116-132 cm) for comfortable riding. Ensure the handlebar is aligned with the front wheel.
- Instal·lació de pedals: Identify the left (L) and right (R) pedals. Thread the pedals into the crank arms. Note that the left pedal has a reverse thread. Tighten them securely with a wrench.
- Ajust del tija del seient: Insert the seat post into the frame. Adjust the seat height (86-106 cm) to allow for a slight bend in your knee when your foot is at the bottom of the pedal stroke. Secure the quick-release lever. The seat post also features integrated shock absorption for added comfort.
- Instal·lació de la bateria: Ensure the battery is fully charged before first use. Insert the battery into its compartment and lock it securely. The battery is removable for convenient charging.
- Inflat de pneumàtics: Inflate tires to the recommended pressure, typically found on the tire sidewall.
5. Instruccions de funcionament
Learn how to operate your Fafrees F20 X-MAX electric bicycle.
5.1. Càrrega de la bateria

Figura 5.1: The 48V 30Ah Samsung battery, highlighting its removable design and 3A fast charging capability. The image shows the internal cell structure.
- Connect the charger to the charging port on the battery or directly to the battery if removed from the bike.
- Connecteu el carregador a una presa de corrent estàndard.
- The charging indicator on the charger will show the charging status. A full charge takes approximately 9 hours.
- Desconnecteu el carregador un cop finalitzada la càrrega.
5.2. LCD Display and Controls

Figura 5.2: The high-resolution color LCD display, showing various riding metrics and featuring a built-in USB charging port for mobile devices.
The LCD display provides real-time information and allows control over the e-bike's functions:
- Encès/apagat: Press and hold the power button on the display to turn the bike on or off.
- Speed Levels (PAS): Use the '+' and '-' buttons to cycle through the 0-3 levels of pedal-assist. Level 0 is no assist, Level 3 is maximum assist.
- Visualització d'informació: The screen shows speed, battery level, mileage, and current gear.
- Control de creuer: The display features a cruise control function for maintaining a consistent speed.
- 6 km/h Walk Mode: Activate this mode for easy maneuvering when walking alongside the bike.
- Port de càrrega USB: A built-in USB port allows you to charge your mobile devices while riding.
5.3. Modes de conducció
The F20 X-MAX offers three riding modes:
- Human Mode (Pedal Only): Aneu amb bicicleta com una bicicleta tradicional sense cap assistència elèctrica.
- Mode d'assistència al pedaleig (PAS): The motor provides assistance as you pedal. Choose from 3 levels of assistance. This mode offers a range of 180-200 km.
- Mode elèctric pur: Use the throttle to propel the bike without pedaling. This mode offers a range of 120-140 km.
6. Manteniment
Un manteniment regular garanteix la longevitat i el funcionament segur de la teva bicicleta elèctrica.
- Neteja: Netegeu la bicicleta regularment amb anuncisamp drap. Eviteu rentar directament els components elèctrics a alta pressió.
- Lubricació: Lubricate the chain and other moving parts periodically.
- Frens: Check brake pads for wear and replace as needed. Ensure brake levers are firm and responsive. Hydraulic disc brakes provide excellent stopping power.
- Pneumàtics: Check tire pressure before each ride. Inspect tires for cuts or punctures.
- Cura de la bateria: Guardeu la bateria en un lloc fresc i sec. Si la guardeu durant períodes prolongats, carregueu-la al 50-70% cada 2-3 mesos.
- Elements de fixació: Periodically check all bolts and nuts for tightness, especially on the folding mechanisms, wheels, and handlebars.
- Suspensió: Inspect the front fork, rear shock, and seat post shock for proper function and cleanliness.
7. Solució De Problemes
This section addresses common issues you might encounter with your Fafrees F20 X-MAX.
| Problema | Causa possible | Solució |
|---|---|---|
| La bicicleta no s'encén. | Battery not charged, battery not properly seated, power cable loose. | Charge the battery. Ensure battery is fully inserted and locked. Check all cable connections. |
| El motor no ajuda. | PAS level is 0, brake levers engaged, motor cable loose. | Increase PAS level. Release brake levers. Check motor cable connection. |
| Els frens es noten febles. | Worn brake pads, air in hydraulic system, misaligned calipers. | Inspect and replace brake pads. Consult a professional for hydraulic system bleeding or caliper adjustment. |
| Sorolls estranys de la transmissió. | Cadena seca, desviador desalineat, components solts. | Lubricate the chain. Adjust derailleur. Check for loose bolts. |
| Curt abast de la bateria. | Under-inflated tires, frequent use of pure electric mode, riding uphill often, cold weather. | Ensure tires are properly inflated. Use pedal-assist more often. Battery performance can be reduced in cold temperatures. |
If you encounter issues not listed here or require further assistance, please contact Fafrees customer support.
8. Especificacions
Detailed technical specifications for the Fafrees F20 X-MAX Electric Bicycle.
| Característica | Especificació |
|---|---|
| Tipus de bateria | Samsung 21700 Lithium-ion Cell |
| Capacitat de la bateria | 48V / 30Ah / 1440 Wh |
| Temps de càrrega | Approx. 9 hours (with 3A fast charger) |
| Abast màxim (mode PAS) | 180 - 200 km (112 - 124 miles) |
| Abast màxim (mode elèctric pur) | 120 - 140 km (75 - 87 miles) |
| Ubicació del motor | Unitat de concentració posterior |
| Max Torque | 65 Nm |
| Capacitat màxima d'escalada | 25° |
| Viatge de forquilla davantera | 50 mm |
| Rear Shock Travel | 15 mm |
| Tipus de visualització | Pantalla LCD en color |
| Nivells PAS | 0-3 |
| Desviador | Shimano de 7 velocitats |
| Tipus de fre | Frens de disc hidràulics |
| Foldable Parts | Handlebar, Frame, Pedals |
| Far | LED Headlight with Horn |
| Llum posterior | Rear Light with Brake Light and Turn Signal |
| Modes de conducció | Human / Pedal-Assist / Pure Electric |
| Temperatura de funcionament | -10 ℃ a 40 ℃ (14 °F a 104 °F) |
| Classificació impermeable | IPX4 |
| Dimensions desplegades (L x A x A) | 186 x 126 x 63 cm (73.2 x 49.6 x 24.8 polzades) |
| Mides plegades (L x A x A) | 105 x 45 x 76 cm (41.3 x 17.7 x 29.9 polzades) |
| Alçada del manillar ajustable | 116 - 132 cm (45.7 - 52 polzades) |
| Alçada del seient ajustable | 86 - 106 cm (33.9 - 41.7 polzades) |
| Mida del pneumàtic | 20 x 4.0 polzades |
| Pedal to Ground Clearance | 10 cm (3.9 polzades) |
| Alçada recomanada del genet | 165 - 210 cm (5'5" - 6'11") |
| Pes net | 49 kg (108 lliures) |
| Pes de la bateria | 7.5 kg (16.5 lliures) |
| Capacitat de càrrega | 150 kg (330 lliures) |
| Material del marc | High-Strength Steel |
| Tipus de pneumàtic | Pneumàtics pneumàtics |
9. Garantia i Suport
Fafrees provides a warranty for the F20 X-MAX Electric Bicycle against manufacturing defects. Please refer to the warranty card included in your package for specific terms and conditions, including warranty period and coverage details.
For technical support, spare parts, or warranty claims, please contact Fafrees customer service through their official website or the contact information provided in your product documentation. When contacting support, please have your model number (F20 X-MAX) and purchase date ready.
Components inclosos:
- 1 x Fafrees F20 X-Max e-Bike
- 1 x Carregador
- 1 x Kit d'eines
- 1 x Manual d'usuari
- 1 x Gift Box (including 1 x inner tube, 2 x valve caps, 4 x spokes, 2 x wheel reflectors, 2 x battery fuses, 2 x brake pads, 1 x keychain)





