1. Introducció
Welcome to the user manual for your new ENGWE C20 PRO Folding Electric Bicycle. This manual provides essential information for the safe and efficient operation, assembly, maintenance, and troubleshooting of your e-bike. Please read this manual thoroughly before your first ride and keep it for future reference.
The ENGWE C20 PRO is designed for versatility and convenience, featuring a robust aluminum alloy frame, a powerful 250W brushless motor, and a long-lasting 36V 15.6Ah removable battery. Its 20-inch fat tires and front suspension ensure a comfortable ride across various terrains, while the foldable design allows for easy storage and transport.

Image: The ENGWE C20 PRO Folding Electric Bicycle in white, showcasing el seu disseny compacte i robust.
2. Advertiments de seguretat importants
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, la pressió dels pneumàtics i el nivell de la bateria.
- No conduïu sota els efectes de l'alcohol o les drogues.
- Avoid riding in adverse weather conditions, such as heavy rain or snow, which can reduce visibility and traction.
- Assegureu-vos que la bateria estigui ben fixada al seu lloc abans de conduir.
- Do not attempt to modify the e-bike's electrical system or motor.
- Sigues conscient del teu entorn i dels altres usuaris de la carretera.
3. Contingut del paquet
En obrir el paquet, comproveu que hi hagi tots els components següents:
- 1 x ENGWE C20 Pro E-bike
- 1 bateria d'ió de liti de 36 V 15.6 Ah
- 1 x carregador de bateria
- 1 x Manual d'usuari
- 2 x Pedals
- 1 x Assembly Tools Kit
4. Muntatge i muntatge
The ENGWE C20 PRO comes mostly pre-assembled. Follow these steps for final assembly and initial setup:
- Desplegant la bicicleta: Carefully unfold the frame and handlebar stem until they lock into place. Ensure all quick-release levers are securely fastened.
- Instal·lació de pedals: Identify the left (L) and right (R) pedals. Screw them into the crank arms. Note that the left pedal screws counter-clockwise. Tighten firmly with the provided tools.
- Ajust de l'alçada del seient: Loosen the quick-release lever on the seat post. Adjust the seat height so your feet can comfortably touch the ground when stopped, or your leg has a slight bend at the knee when the pedal is at its lowest point. Secure the quick-release lever.
- Ajust de l'alçada del manillar: If adjustable, loosen the quick-release lever on the handlebar stem and adjust to a comfortable riding position. Secure the quick-release lever.
- Instal·lació i càrrega de la bateria: Insert the 36V 15.6Ah lithium-ion battery into its compartment and ensure it clicks into place. Use the provided key to lock it. Before your first ride, fully charge the battery using the included charger. The charging port is typically located on the battery itself or the frame.
- Inflat de pneumàtics: Inflate the 20x3.0 inch fat tires to the recommended pressure indicated on the tire sidewall.

Image: The ENGWE C20 PRO can be easily folded and stored, demonstrating its portability for transport in a vehicle.
5. Instruccions de funcionament
5.1 Engegada/Apagada i Visualització
To power on the e-bike, press and hold the power button on the LCD display. The display will show battery level, current speed, and riding mode. To power off, press and hold the power button again.

Imatge: Un primer pla view of the ENGWE C20 PRO's LCD display, showing battery indicator, speed, and other ride data.
5.2 Modes de conducció
The ENGWE C20 PRO offers three distinct riding modes:
- Mode elèctric pur: Engage the throttle for motor-only propulsion without pedaling.
- Mode d'assistència al pedaleig (PAS): The motor provides assistance as you pedal. You can adjust the level of assistance using the controls on the handlebar.
- Normal Bicycle Mode: Aneu amb bicicleta com una bicicleta tradicional sense assistència motora.
5.3 Canvi de marxes
The e-bike is equipped with a 7-speed gear system. Use the gear shifter on the handlebar to change gears according to terrain and desired speed. Lower gears are for climbing hills, and higher gears are for flat terrain and faster speeds.
5.4 Sistema de frenada
The ENGWE C20 PRO features front and rear mechanical disc brakes for reliable stopping power. Always apply both brakes simultaneously for effective and safe braking. Avoid sudden, hard braking, especially at high speeds.

Imatge: Detallada views of the e-bike's 7-speed gear shift system, robust mechanical disc brakes, and the clear LCD display.
6. Manteniment
Un manteniment regular garanteix la longevitat i el funcionament segur de la teva bicicleta elèctrica.
- Cura de la bateria:
- Carregueu la bateria regularment, fins i tot si no l'esteu fent servir, per mantenir-ne el bon estat.
- Eviteu descarregar completament la bateria.
- Guardeu la bateria en un lloc fresc i sec, lluny de la llum solar directa.
- Pneumàtics: Check tire pressure before each ride. The 20x3.0 inch fat tires are puncture-resistant but should still be inspected for wear and damage.
- Frens: Regularly check brake pads for wear and ensure brake levers provide firm and responsive stopping power. Adjust as needed.
- Chain and Gears: Keep the chain clean and lubricated. Inspect gears for any damage or misalignment.
- Frame and Components: Periodically check all bolts, nuts, and quick-release levers for tightness. Clean the frame with a damp drap; eviteu rentar a alta pressió directament sobre els components elèctrics.

Image: An illustration highlighting the 15.6Ah Lithium-ion battery, emphasizing its capacity and extended range compared to other batteries.

Image: A visual representation of the e-bike's 20x3 inch puncture-resistant fat tires, designed for stable and safe rides.
7. Solució De Problemes
This section addresses common issues you might encounter with your ENGWE C20 PRO e-bike.
| Problema | Causa possible | Solució |
|---|---|---|
| La bicicleta elèctrica no s'encén. | Battery not charged or not properly installed. Loose connections. | Ensure battery is fully charged and securely locked. Check all electrical connections. |
| El motor no ajuda. | Low battery. Incorrect riding mode selected. Sensor issue. | Charge battery. Switch to Pedal Assist or Pure Electric mode. Check for error codes on display. |
| Els frens es noten febles. | Worn brake pads. Loose brake cable. | Inspeccioneu i substituïu les pastilles de fre si estan desgastades. Ajusteu la tensió del cable de fre. |
| Tires losing air quickly. | Puncture or valve issue. | Inspect tires for punctures and repair. Check valve stem for leaks. |
8. Especificacions
Detailed technical specifications for the ENGWE C20 PRO Folding Electric Bicycle:
| Característica | Especificació |
|---|---|
| Model | ENGWE C20 PRO |
| Color | White (also available in Black, Gray) |
| Motor | 36V 250W Brushless Motor (500W Peak Power) |
| Bateria | 36V 15.6Ah Removable Lithium-ion Battery |
| Temps de càrrega | Aproximadament 6 hores |
| Interval màxim | Up to 60 KM (depending on mode, terrain, rider weight) |
| Material del marc | Aliatge d'alumini |
| Mida de la roda | 20 polzades |
| Pneumàtics | 20 x 3.0 inch Puncture-resistant Fat Tires |
| Engranatges | Sistema de canvis de 7 velocitats |
| Frens | Front and Rear Mechanical Disc Brakes |
| Suspensió | Suspensió de forquilla davantera |
| Dimensions (L x A x A) | 161 x 52 x 120 cm |
| Pes del producte | 24.8 kg |
| Franja d'edat | Adult |

Image: An infographic summarizing the key specifications including range, battery, tire size, suspension, charge time, speed, and motor power.

Image: A detailed diagram illustrating the 250W brushless motor, highlighting its components and power output.

Image: The ENGWE C20 PRO electric bike displayed in its available colors: Black, Gray, and White.
9. Garantia i Suport
ENGWE provides a limited warranty for its products. Please refer to the warranty card included with your purchase or visit the official ENGWE website for detailed warranty terms and conditions. The warranty typically covers manufacturing defects in materials and workmanship for a specified period from the date of purchase.
For technical support, spare parts, or warranty claims, please contact ENGWE customer service through their official website or the contact information provided in your purchase documentation. When contacting support, please have your product model (C20 PRO) and purchase details ready.





