1. Pautes de seguretat
Before operating your isinwheel U5 Pro Folding Electric Bike, please read and understand all safety instructions. Failure to follow these guidelines may result in serious injury or property damage.
- Porteu sempre casc i equip de seguretat adequat.
- Feu una inspecció prèvia a la conducció abans de cada ús, comprovant els frens, els pneumàtics i la bateria.
- Respecteu les lleis i regulacions de trànsit locals.
- No conduïu sota els efectes de l'alcohol o les drogues.
- Eviteu conduir en condicions meteorològiques adverses o sobre superfícies relliscoses.
- Assegureu-vos que la bateria estigui ben fixada al seu lloc abans de conduir.
- Do not modify the electric bike's components, especially the motor or battery system.
2. Instruccions de muntatge
Your isinwheel U5 Pro Folding Electric Bike comes partially assembled. Follow these steps to complete the assembly and prepare your bike for its first ride.
2.1 Desembalatge i configuració inicial
Carefully remove the electric bike and all components from the packaging. Inspect for any damage during transit.
Video: isinwheel U5 Pro Electric Bike Unboxing. This video demonstrates the unboxing process and initial setup of the electric bike, including removing packaging materials and preparing for assembly.
2.2 Instal·lació de components
Refer to the detailed installation video for visual guidance on attaching the remaining components.
Video: 20" Folding Electric Bike Installation Instructions. This video provides step-by-step instructions for installing the kickstand, headlight, fender, front tire, handlebars, rear rack, pedals, and seat.
- Instal·leu Kickstand: Attach the kickstand to the designated mounting points on the bike frame.
- Instal·leu el far i el parafangs: Secure the front fender and headlight to the front fork. Ensure all connections are tight.
- Install Front Tire: Carefully align the front wheel with the fork and secure it using the quick-release mechanism or bolts. Ensure the brake rotor is correctly seated in the caliper.
- Instal·lar manillars: Insert the handlebar stem into the head tube and adjust to a comfortable height. Tighten the clamping bolts securely.
- Install Rear Rack: Attach the rear rack to the mounting points on the rear frame.
- Instal·lar pedals: Identify the left (L) and right (R) pedals. Thread the pedals into the crank arms, ensuring the correct direction (left pedal counter-clockwise, right pedal clockwise). Tighten firmly with a wrench.
- Instal·lar el seient: Insert the seat post into the frame's seat tube and adjust the height. Secure with the quick-release lever.
3. Instruccions de funcionament
Familiarize yourself with the controls and features of your isinwheel U5 Pro for a safe and enjoyable ride.
3.1 Power On and Display
To power on the bike, press and hold the power button on the smart LCD display. The display will show current speed, battery level, riding time, mileage, and pedal assist level.

Image: Close-up of the isinwheel U5 Pro's smart LCD display, non-slip grip, accelerator, and Shimano 7-speed derailleur. The display shows speed, energy bar, and pedal assist level.
3.2 Modes de conducció
- Mode d'assistència al pedal: The motor provides assistance as you pedal. Adjust the assist level using the controls on the handlebar.
- Mode d'acceleració: Use the thumb throttle to engage the motor without pedaling.
- Mode manual: Aneu amb bicicleta com una bicicleta tradicional sense assistència motoritzada.
The 7-speed gearing system allows for efficient pedaling across various terrains and inclines.
3.3 Sistema d'il·luminació
The bike is equipped with an integrated headlight and rear brake light for enhanced visibility and safety. Activate the lights using the dedicated button on the handlebar controls.
3.4 Plegament i emmagatzematge
The U5 Pro features a convenient folding design for easy storage and transport. Unlock the frame hinge and handlebar stem to fold the bike into a compact size (approximately 37.4 × 17.7 × 27.5 inches).

Image: A man demonstrating the folding convenience of the isinwheel U5 Pro electric bike by placing it into a car trunk.
3.5 Càrrega de la bateria
The 48V removable battery can be charged on or off the bike. Connect the charger to the charging port on the battery and then to a power outlet. The charging indicator on the charger will show the charging status. A full charge takes approximately 2-3 hours.

Image: The isinwheel U5 Pro electric bike connected to its charger, illustrating the fast charging capability.
4. Manteniment
Un manteniment regular garanteix la longevitat i el funcionament segur de la teva bicicleta elèctrica.
- Pressió dels pneumàtics: Comproveu la pressió dels pneumàtics regularment i infleu-los fins als PSI recomanats (indicats al lateral del pneumàtic).
- Frens: Periodically inspect brake pads for wear and ensure brake levers are responsive. Adjust or replace as needed.
- Cadena: Keep the chain clean and lubricated to prevent rust and ensure smooth gear changes.
- Cura de la bateria: Store the battery in a cool, dry place. Avoid fully discharging the battery for extended periods. Charge regularly, even when not in use.
- Neteja general: Netegeu la bicicleta amb un damp drap. Eviteu utilitzar dolls d'aigua a alta pressió directament sobre els components elèctrics.
- Elements de fixació: Comproveu periòdicament que tots els cargols i elements de fixació estiguin ben ajustats.
5. Solució De Problemes
This section addresses common issues you might encounter with your isinwheel U5 Pro Electric Bike.
| Problema | Causa possible | Solució |
|---|---|---|
| La bicicleta no s'encén | Battery not charged or not properly seated; power button not pressed correctly. | Ensure battery is fully charged and securely locked. Press and hold the power button for a few seconds. |
| El motor no ajuda | Pedal assist level set to zero; loose motor connection; brake levers engaged. | Increase pedal assist level on the display. Check all electrical connections. Ensure brake levers are fully released. |
| Brakes feel weak or squeaky | Worn brake pads; misaligned calipers; contaminated rotors. | Inspect brake pads and replace if worn. Adjust caliper alignment. Clean rotors with a suitable brake cleaner. |
| Sorolls inusuals durant el trajecte | Loose components; dry chain; tire rubbing. | Check all bolts and fasteners. Lubricate the chain. Inspect tires for proper seating and clearance. |
If you encounter issues not listed here or if solutions do not resolve the problem, please contact isinwheel customer support for assistance.
6. Especificacions
| Característica | Detall |
|---|---|
| Tipus de bicicleta | Bicicleta elèctrica |
| Nom del model | U5 Pro |
| Motor | 500W |
| Bateria | 48V 7.8Ah Removable Lithium Battery (374.4 Watt Hours) |
| Temps de càrrega | 2-3 hores |
| Velocitat màxima | 20 mph |
| Sistema d'engranatges | 7-Speed Gear |
| Mida de la roda | 20 polzades (pneumàtic gruixut) |
| Material del marc | Aliatge d'alumini |
| Tipus de suspensió | Suspensió davantera |
| Mides plegades | 37.4 × 17.7 × 27.5 inches (approx.) |
| Pes de l'article | 53.6 lliures (aprox.) |
| Components inclosos | Smart Display, Black Handlebar Bag |
7. Garantia i Suport
isinwheel is committed to providing quality products and customer satisfaction. Your U5 Pro Electric Bike comes with a standard warranty. For specific warranty details, please refer to the documentation included with your purchase or visit the official isinwheel weblloc.
Additional protection plans may be available for purchase, such as a 2-Year Protection Plan or Complete Protect options. These plans offer extended coverage beyond the standard warranty.
For technical assistance, troubleshooting, or warranty claims, please contact isinwheel Customer Support. Contact information can typically be found on the product packaging or the official brand weblloc.
Atenció al client: Visit the isinwheel Store on Amazon





