1. Vítejte
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. Bezpečnostní pokyny
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.
- Vždy používejte přilbu a další ochranné pomůcky.
- Familiarize yourself with local electric bike regulations.
- Před každým použitím proveďte bezpečnostní kontrolu.
- Nejezděte pod vlivem alkoholu nebo drog.
- Před jízdou se ujistěte, že jsou všechny komponenty bezpečně upevněny.
3. Konec produktuview
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, showcasinjeho celkový design a tlusté pneumatiky.
Klíčové vlastnosti:
- 1500W Peak Brushless 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.
- Terénní tlusté pneumatiky 26"x4.0": Puncture-proof with 3X wear-resistant layers and drainage grooves, tested for 5000 miles.
- Systém plného odpružení: 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. Montážní návod
The isinwheel U8 Ultra Electric Bike comes partially assembled. Follow these steps to complete the assembly process.
4.1. Rozbalení a počáteční nastavení
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. Instalace řídítek
Attach the handlebar to the stem, ensuring it is centered and the bolts are tightened securely. Adjust the angle for comfortable riding.
4.3. Front Wheel and Fender Installation
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. Instalace pedálů
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. Ovládání elektrokola
Understand the various modes and functions to maximize your riding experience.
5.1. Zapnutí/vypnutí
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. Režimy jízdy
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.
- Elektrický režim: Pro plný elektrický výkon použijte plynovou páku bez šlapání.
- Režim plavby: Udržuje nastavenou rychlost bez neustálého sešlápnutí plynu.
- Režim chůze: Poskytuje asistenci při chůzi na kole při nízké rychlosti.
- Režim pedálu: Jezděte na kole jako na tradičním kole bez pomoci motoru.
5.3. Systém osvětlení
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. Vyjmutí baterie
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. Provoz nabíjení
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. Průvodce údržbou
Regular maintenance is essential for the performance and lifespan of your electric bike.
- pneumatiky: Check tire pressure regularly and ensure tires are free from punctures or excessive wear.
- brzdy: Inspect brake pads and rotors for wear. Ensure hydraulic brakes are functioning correctly and provide instant stopping power.
- Řetěz: Udržujte řetěz čistý a promazaný pro plynulé řazení a prevenci koroze.
- Baterie: Store the battery in a cool, dry place and charge it regularly, even if not in use, to maintain its health.
- Spojovací materiál: Periodically check all bolts and screws for tightness.
- Čištění: Vyčistěte kolo reklamouamp hadříkem. Vyhněte se mytí elektrických součástí tlakovou vodou.
8. Odstraňování běžných problémů
This section addresses common problems you might encounter and their potential solutions.
| Problém | Možná příčina | Řešení |
|---|---|---|
| Kolo se nezapne | Baterie není nabitá nebo není správně usazená. | Ensure battery is fully charged and securely locked into the frame. Check connections. |
| Motor nepomáhá | PAS level set to zero, or a sensor issue. | Increase PAS level on the display. Check for error codes on the display. |
| Brzdy se zdají být měkké | Air in hydraulic lines or worn brake pads. | Bleed the hydraulic brakes or replace brake pads. Consult a professional if unsure. |
| Neobvyklé zvuky během jízdy | Uvolněné součásti, suchý řetěz nebo tření brzd. | Inspect all fasteners, lubricate the chain, and check brake caliper alignment. |
9. Specifikace produktu
Detailed technical specifications for the isinwheel U8 Ultra Electric Bike.
| Funkce | Specifikace |
|---|---|
| Název modelu | U8 Ultra |
| Typ kola | Elektrické kolo |
| Motor | Bezkartáčový motor s maximálním výkonem 1500 W |
| Nejvyšší rychlost | 28 MPH |
| Točivý moment | 80 Nm |
| Schopnost lezení | 30% Slopes |
| Baterie | 48V 18Ah (864Wh) with BMS 2.0 |
| Range (PAS) | 105+ mil |
| Pneumatiky | 26"x4.0" Puncture-Proof Fat Tires |
| Typ odpružení | Dvojí |
| Brzdy | Sealed Hydraulic Brakes |
| Ozubená kola | 7rychlostní Shimano |
| Materiál rámu | 6061 hliník |
| Světlomet | 2000lm |
| Hmotnost položky | 85.9 libry |
| Doporučená výška | 1,4 m - 1,98 m |
| Maximální nosnost | 440 LBS (Max 330 LBS for seat) |
| Rozměry (DxŠxV) | 78 x 28.7 x 46.9 palce |
10. Záruka a podpora
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.
Zákaznická podpora:
For any questions, technical assistance, or warranty claims, please contact isinwheel customer support:
- Telefon: 1(888) 293-5788
- E-mail: podpora@isinwheel.com
Our support team is available to assist you with any product-related inquiries.





