1. Introducció
Thank you for choosing the isinwheel M50 Electric Bike. This manual provides essential information for the safe assembly, operation, maintenance, and troubleshooting of your new electric bicycle. Please read this manual thoroughly before your first ride and keep it for future reference. The M50 is designed for adults, featuring a 27.5-inch tire, a 750W peak motor, full suspension, and a 13Ah removable battery, offering a maximum speed of 32 KM/H and a PAS range of up to 60 KM.
2. Informació de seguretat
Your safety is paramount. Always wear a helmet and appropriate safety gear when riding. Familiarize yourself with local traffic laws and regulations regarding electric bicycles. Perform a pre-ride inspection before each use.
- Ús del casc: Porteu sempre un casc homologat.
- Comprovació prèvia a la conducció: Inspect brakes, tires, battery, and all fasteners before each ride.
- Lleis de trànsit: Obey all local traffic laws, signs, and regulations.
- Condicions meteorològiques: Exercise caution in wet or slippery conditions.
- Límit de pes: No supereu la capacitat de càrrega màxima de 330 lliures.
- Franja d'edat: This electric bike is intended for adult use.
3. Muntatge i muntatge
The isinwheel M50 Electric Bike arrives approximately 90% pre-assembled. Basic assembly is required for components such as the handlebar, front wheel, pedals, seat, and fenders. A tool kit and instructions are included to assist you.
Passos de muntatge:
- Desembalatge: Traieu amb cura la bicicleta i tots els components de l'embalatge.
- Instal·lació del manillar: Fixeu el manillar a la potència, assegurant-vos que estigui centrat i ben ajustat.
- Roda davantera: Install the front wheel, making sure the disc brake rotor is correctly seated in the caliper.
- Pedals: Attach the pedals. Note that pedals are typically marked 'L' for left and 'R' for right, and have different thread directions.
- Tija de seient: Insert the seat post into the frame and adjust to a comfortable height, then secure it with the quick-release lever.
- Parafangs: Install the front and rear fenders if they are not already attached.
- Bateria: Ensure the battery is securely installed and locked into the frame.

Image: The isinwheel M50 Electric Bike, ready for final adjustments after initial assembly.
For detailed visual guidance, please refer to the assembly video available on the product page.
4. Instruccions de funcionament
Understanding how to operate your M50 electric bike ensures a safe and enjoyable riding experience.
4.1. Bateria i càrrega
The M50 is equipped with a 13Ah removable battery. To charge, connect the charger to the battery charging port and then to a power outlet. The indicator light on the charger will show the charging status. Always use the original charger provided.

Image: The 13Ah removable battery integrated into the M50 frame, highlighting its design.
4.2. Encès / apagat
To power on the bike, press and hold the power button on the display unit. To power off, press and hold the power button again.
4.3. Sistema d'assistència al pedaleig (PAS)
The M50 features a Pedal Assist System (PAS) with multiple levels. Use the '+' and '-' buttons on the control panel to adjust the assist level. Higher levels provide more motor assistance, while lower levels offer less. The bike also has a throttle for pure electric power.
4.4. Canvi de marxes
Your M50 is equipped with a 7-speed Shimano gear system. Use the shifter on the handlebar to change gears, allowing you to adapt to different terrains and inclines. Shift smoothly to avoid damage to the drivetrain.

Image: The Shimano 7-speed gear shifter and rear derailleur, demonstrating the bike's adaptable gearing.
4.5. Headlight Operation
The M50 includes a 130 Lux headlight for enhanced visibility. Activate the headlight using the dedicated button on the control panel. Ensure it is on when riding in low-light conditions.

Image: The powerful 130 Lux headlight, designed for clear visibility during night rides.
5. Manteniment
Regular maintenance is crucial for the longevity and performance of your isinwheel M50 Electric Bike.
- Pressió dels pneumàtics: Check tire pressure regularly. The 27.5-inch dirt tires require specific pressure for optimal grip and ride comfort. Refer to the tire sidewall for recommended PSI.
- Frens: Inspect disc brakes for wear on pads and rotors. Ensure brake levers are firm and responsive. Adjust or replace components as needed.
- Cadena: Mantingueu la cadena neta i lubricada per garantir canvis de marxa suaus i evitar el desgast.
- Suspensió: Periodically check the 4-Link full suspension system for proper function and ensure all pivot points are free of debris.
- Cura de la bateria: Guardeu la bateria en un lloc fresc i sec. Eviteu descarregar-la completament i carregueu-la regularment, fins i tot quan no la feu servir, per allargar-ne la vida útil.
- Neteja general: Netegeu la bicicleta amb un damp drap. Eviteu rentar directament els components elèctrics a alta pressió.
- Elements de fixació: Regularly check and tighten all bolts and nuts, especially on critical components like the handlebars, wheels, and seat post.

Image: The aggressive tread pattern of the 27.5-inch tire, designed for superior grip on various terrains.

Image: The advanced 4-Link full suspension system, engineered for stability and a smooth ride over rough terrain.
6. Solució De Problemes
This section addresses common issues you might encounter with your M50 electric bike.
| Problema | Causa possible | Solució |
|---|---|---|
| La bicicleta no s'encén | Bateria no carregada o no instal·lada correctament; connexions fluixes. | Ensure battery is fully charged and securely seated. Check all cable connections. |
| El motor no ajuda | PAS level set to zero; brake levers engaged; motor cable disconnected. | Increase PAS level. Release brake levers. Check motor cable connection. |
| Curt abast de la bateria | Low tire pressure; riding in high assist levels; frequent stops/starts; cold weather. | Inflate tires to recommended pressure. Use lower PAS levels. Maintain consistent speed. |
| Els frens es senten febles | Worn brake pads; air in hydraulic system (if applicable); misaligned caliper. | Inspect and replace brake pads. Consult a bike mechanic for hydraulic system bleeding or caliper adjustment. |
If you encounter issues not listed here or require further assistance, please contact isinwheel customer support.
7. Especificacions
Detailed technical specifications for the isinwheel M50 Electric Bike:
- Model: M50
- Marca: roda d'isina
- Dimensions del producte: 181.5 x 70 x 112 cm (71.5 x 27.6 x 44.1 polzades)
- Motor: 750W Peak Motor (500W rated)
- Bateria: 13Ah (468 Watt Hours) Removable Lithium Battery
- Velocitat màxima: 32 KM/H (20 MPH)
- PAS Range: Fins a 60 km (37 milles)
- Mida de la roda: 27.5 polzades
- Pneumàtics: 27.5" Dirt Tires
- Nombre de velocitats: 7 (Shimano)
- Tipus de suspensió: Dual (4-Link Full Suspension)
- Estil de fre: Frens de disc
- Far: 130 lux
- Càrrega màxima: 330 lliures
- Alçada recomanada del genet: 1,62 m - 1,93 m
- Muntatge requerit: Yes (90% pre-assembled)
- Intended Riding Terrain: Mountain Terrain, Trail

Image: The isinwheel M50 in action, demonstrating its 750W peak motor power and quick acceleration.

Imatge: Dimensional overview of the M50 electric bike, providing key measurements for fit and storage.
8. Garantia i Suport
isinwheel stands behind the quality of its products. The M50 electric bike has passed Safe 2849 certifications, ensuring reliability and safety.
- Garantia: Specific parts of the e-bike are covered by a warranty of one year or 180 days, depending on the component. Please refer to your purchase documentation for detailed warranty terms.
- Atenció al client: If you have any questions or encounter issues with your M50 electric bike, please do not hesitate to contact our customer support team. We are committed to providing satisfactory service within 24 hours.