1. Velkommen
Thank you for choosing the isinwheel U8 Ultra Electric Bike. This manual provides essential information for the safe assembly, operation, maintenance, and troubleshooting of your new electric bike. Please read it thoroughly before your first ride and keep it for future reference.
2. Sikkerhedsretningslinjer
Your safety is paramount. Always adhere to local traffic laws and wear appropriate safety gear, including a helmet. Regular maintenance is crucial for safe operation.
- Bær altid hjelm og andet beskyttelsesudstyr.
- Familiarize yourself with local electric bike regulations.
- Perform a pre-ride safety check before each use.
- Rid ikke under påvirkning af alkohol eller stoffer.
- Sørg for, at alle komponenter er forsvarligt fastgjort, inden du kører.
3. Produktet er slutview
The isinwheel U8 Ultra is a robust electric bike designed for various terrains, featuring a powerful motor, long-range battery, and full suspension for a comfortable ride.

Image: The isinwheel U8 Ultra Electric Bike, showcasing its overall design and fat tires.
Nøglefunktioner:
- 1500W Peak børsteløs motor: Delivers up to 28 MPH top speed and 80Nm torque, capable of conquering 30% slopes.
- 48V 18Ah Integrated Battery: IPX6 waterproof, offering 105+ miles range (PAS mode) with BMS 2.0 for enhanced safety and durability.
- 26"x4.0" All-Terrain Fat Tires: Puncture-proof with 3X wear-resistant layers and drainage grooves, tested for 5000 miles.
- Fuldt affjedringssystem: Enhances comfort and control over varied terrain.
- Sealed Hydraulic Brakes: Provides instant stopping power, corrosion-resistant, and low-maintenance.
- 4+1 Smart Riding Modes: Pedal Assist System (PAS), Electric, Cruise, Walk, and Pedal modes for versatile riding.
- Easy Step-Thru Design: Lightweight 6061 aluminum frame for easy mounting and dismounting, suitable for riders of all ages and abilities.
4. Monteringsvejledning
The isinwheel U8 Ultra Electric Bike comes partially assembled. Follow these steps to complete the assembly process.
4.1. Udpakning og indledende opsætning
Carefully remove the bike and all components from the packaging. Lay out all parts and tools provided.

Image: Rear wheel and motor assembly, highlighting the 1500W peak brushless motor and its capability on inclines.
4.2. Installation af styr
Attach the handlebar to the stem, ensuring it is centered and the bolts are tightened securely. Adjust the angle for comfortable riding.
4.3. Montering af forhjul og skærm
Install the front wheel, ensuring the brake rotor is correctly aligned with the caliper. Attach the front fender and headlight.
4.4. Seat Post and Rear Reflector Installation
Insert the seat post into the frame and adjust the height. Attach the rear reflector to the seat post.
4.5. Pedalmontering
Identify the left (L) and right (R) pedals. Thread them into the crank arms and tighten securely. Remember that the left pedal has a reverse thread.
4.6. Rear Rack Installation
Securely attach the rear rack to the designated mounting points on the frame.
4.7. Video Guide: Installation and Operation
For a visual guide on assembly and initial operation, please watch the official installation video:
Video: Official installation and operation guide for the isinwheel U8 Plus Electric Bike, demonstrating assembly steps and basic functions.
5. Betjening af din elcykel
Understand the various modes and functions to maximize your riding experience.
5.1. Tænd/sluk
To power on the bike, press and hold the power button on the display unit. To power off, press and hold the same button. The display will show battery level, speed, and assist mode.

Image: The bike's display unit showing speed, battery, and assist level, with a phone charging via the integrated USB port.
5.2. Køretilstande
The U8 Ultra offers 4+1 smart riding modes:
- Pedal Assist System (PAS): Provides motor assistance as you pedal. Adjust assist levels using the '+' and '-' buttons on the display.
- Elektrisk tilstand: Brug gashåndtaget til fuld elektrisk kraft uden at træde i pedalerne.
- Cruise Mode: Opretholder en indstillet hastighed uden kontinuerlig gasgivning.
- Gangtilstand: Giver assistance ved lav hastighed, når man skal gå på cyklen.
- Pedaltilstand: Kør cyklen som en traditionel cykel uden motorassistance.
5.3. Belysningssystem
The bike is equipped with a 2000lm headlight and a high-visibility taillight for enhanced safety, especially during low-light conditions.

Image: Close-up of the bike's headlight, taillight, dual disc brakes, and fenders, emphasizing safety and visibility features.
6. Battery Removal and Charging
Proper battery handling and charging ensure longevity and safety.
6.1. Fjernelse af batteri
To remove the battery, use the provided key to unlock it from the frame. Carefully slide the battery out.

Image: A person holding the integrated 48V 18Ah battery, highlighting its design and capacity for extended range.
6.2. Opladningsdrift
Connect the charger to a power outlet, then connect the charging cable to the bike's charging port. The charger indicator light will show charging status. Ensure the charging port cover is closed when not charging.
7. Vedligeholdelsesguide
Regular maintenance is essential for the performance and lifespan of your electric bike.
- Dæk: Check tire pressure regularly and ensure tires are free from punctures or excessive wear.
- Bremser: Inspect brake pads and rotors for wear. Ensure hydraulic brakes are functioning correctly and provide instant stopping power.
- Kæde: Hold kæden ren og smurt for at sikre jævne gearskift og for at forhindre rust.
- Batteri: Store the battery in a cool, dry place and charge it regularly, even if not in use, to maintain its health.
- Fastgørelsesmidler: Periodically check all bolts and screws for tightness.
- Rensning: Rengør cyklen med en damp klud. Undgå højtryksspuling direkte på elektriske komponenter.
8. Fejlfinding af almindelige problemer
This section addresses common problems you might encounter and their potential solutions.
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Cyklen tænder ikke | Batteriet er ikke opladet eller ikke korrekt isat. | Ensure battery is fully charged and securely locked into the frame. Check connections. |
| Motoren hjælper ikke | PAS level set to zero, or a sensor issue. | Increase PAS level on the display. Check for error codes on the display. |
| Bremserne føles svampede | Air in hydraulic lines or worn brake pads. | Bleed the hydraulic brakes or replace brake pads. Consult a professional if unsure. |
| Usædvanlige lyde under kørsel | Løse komponenter, tør kæde eller bremseslid. | Inspect all fasteners, lubricate the chain, and check brake caliper alignment. |
9. Produktspecifikationer
Detailed technical specifications for the isinwheel U8 Ultra Electric Bike.
| Feature | Specifikation |
|---|---|
| Modelnavn | U8 Ultra |
| Type cykel | El-cykel |
| Motor | 1500W Peak børsteløs motor |
| Tophastighed | 28 MPH |
| Moment | 80 Nm |
| Klatreevne | 30% Slopes |
| Batteri | 48V 18Ah (864Wh) with BMS 2.0 |
| Range (PAS) | 105+ miles |
| Dæk | 26"x4.0" Puncture-Proof Fat Tires |
| Ophængstype | Dobbelt |
| Bremser | Sealed Hydraulic Brakes |
| Gear | 7-speed Shimano |
| Rammemateriale | 6061 aluminium |
| Forlygte | 2000 lm |
| Varens vægt | 85.9 pund |
| Anbefalet højde | 175 cm - 175 cm |
| Maksimal belastningskapacitet | 440 LBS (Max 330 LBS for seat) |
| Dimensioner (LxBxH) | 78 x 28.7 x 46.9 tommer |
10. Garanti og support
Your isinwheel U8 Ultra Electric Bike comes with a manufacturer's warranty. Please refer to the warranty card included with your purchase for specific terms and conditions.
Kundesupport:
For any questions, technical assistance, or warranty claims, please contact isinwheel customer support:
- Telefon: 1(888) 293-5788
- E-mail: support@isinwheel.com
Vores supportteam er tilgængeligt for at hjælpe dig med eventuelle produktrelaterede spørgsmål.





