1. Úvod
Thank you for choosing the Viribus E-bike Mid-Drive Motor Conversion Kit. This kit is designed to transform your standard bicycle into an electric bicycle, providing pedal assistance for a smoother and more enjoyable riding experience. This manual provides essential information for the safe installation, operation, and maintenance of your conversion kit. Please read it thoroughly before installation and keep it for future reference.

Image 1.1: Viribus Mid-Drive Motor Conversion Kit Overview
2. Bezpečnostní informace
Vaše bezpečnost je prvořadá. Dodržujte prosím následující bezpečnostní pokyny:
- Always wear a helmet and appropriate safety gear when riding your e-bike.
- Ensure all connections are secure and waterproof before riding, especially after installation.
- Do not attempt to modify the motor or electrical components. Unauthorized modifications can lead to malfunction, injury, or void the warranty.
- Keep children and pets away from the e-bike during operation and charging.
- Regularly inspect your e-bike for any signs of damage, loose parts, or wear.
- The kit requires a 36V battery (not included). Use only compatible batteries and chargers.
- Adhere to local regulations regarding e-bike usage, speed limits, and safety.
3. Obsah balení
Pečlivě vybalte krabici a ujistěte se, že jsou všechny položky přítomny a nepoškozené. Pokud některé položky chybí nebo jsou poškozené, ihned kontaktujte zákaznickou podporu.

Image 3.1: Packing List of Viribus Mid-Drive Motor Conversion Kit Components
- 1 x Mid-Drive Motor
- 1 x Chainring
- 2 x Cranks
- 1 x Control Panel (Display)
- 1 x plyn
- 1 x světlomet
- 1 x Brake Cable and Sensor
- 1 x Speed Magnet and Sensor
- 1 x 1T4 Cable (Wiring Harness)
- 1 x klíč
- 2 x podložky
- 2 x Brake Magnets
4. Nastavení a instalace
This section outlines the general steps for installing your Viribus Mid-Drive Motor Conversion Kit. Professional installation is recommended if you are unfamiliar with bicycle mechanics or electrical systems.
4.1 Kontrola kompatibility
The conversion kit is compatible with most bicycles that have a bottom bracket shell length of 68-73 mm and a diameter of 34-36 mm. It is suitable for various bike types including mountain bikes, city bikes, road bikes, and folding bikes.

Image 4.1: Bicycle Compatibility and Motor Dimensions
4.2 Instalace motoru
- Remove your bicycle's existing crankset, bottom bracket, and front derailleur (if applicable).
- Insert the mid-drive motor into the bottom bracket shell.
- Secure the motor using the provided mounting hardware and washers. Ensure it is tightly fastened to prevent rotation.
- Install the new chainring and cranks onto the motor spindle.
4.3 Zapojení kabeláže
The kit features color-coded cables for easy connection. Refer to the diagram below for proper wiring.

Image 4.2: Quick and Easy Setup Wiring Diagram
- Connect the Speed Sensor to the rear wheel and route its cable to the motor.
- Connect the Headlight cable.
- Connect the Brake Sensor cables to your brake levers.
- Connect the Throttle Grip cable.
- Connect the Control Panel (Display) cable.
- Connect the 1T4 Cable harness to the motor and then connect the peripheral components (display, throttle, brake sensors, speed sensor) to the appropriate ports on the 1T4 cable.
- Connect your 36V battery (not included) to the motor's main power cable. Ensure the battery is securely mounted on your bicycle.
5. Návod k obsluze
Once installed, operating your e-bike conversion kit is straightforward.
5.1 Zapnutí/vypnutí
Press and hold the power button on the control panel to turn the system on or off. The display will illuminate upon activation.
5.2 Intuitive Display Panel
The 2.4-inch color display provides real-time information and allows you to customize your riding experience. It is app-compatible and features an IP67 waterproof rating, operating between -20 to 70°C.

Image 5.1: Intuitive Display Panel Features
Key display indicators include:
- Rychlost: Real-time, average, and maximum speed.
- Vzdálenost: Current trip distance and total odometer.
- Úroveň baterie: Indikuje zbývající nabití baterie.
- Assist Level/Gear: Shows the current level of pedal assistance.
- svtage: Current system voltage.
- Stav Bluetooth: Indicates connectivity with the app.
- Indikátor světlometů: Zobrazuje, zda jsou zapnutá světlomety.
- tempomat: Activates and indicates cruise control function.
5.3 Jízdní režimy
The kit offers versatile riding modes to suit your needs:

Image 5.2: Versatile Riding Modes
- Pedal Assist Control: The motor provides assistance based on your pedaling input, detected by integrated cadence and torque sensors. Adjust the assist level via the display.
- Walk Assist Control: Provides low-speed motor assistance to help you push the bicycle when walking alongside it.
- Ruční ovládání: Ride the bicycle without any motor assistance, similar to a traditional bike, for exercise or when the motor is off.
The motor's advanced cadence and torque sensors adapt seamlessly to your pedaling, providing a smooth and natural boost when needed.
6. Údržba
Regular maintenance ensures the longevity and optimal performance of your Viribus E-bike Mid-Drive Motor Conversion Kit.
- Čištění: Keep the motor and display clean. Use a damp cloth to wipe surfaces. Avoid high-pressure washing directly on electrical components.
- Spojení: Periodically check all electrical connections for tightness and signs of corrosion. Ensure waterproof seals are intact.
- Pouzdro motoru: Inspect the motor housing for any physical damage.
- Chainring and Cranks: Ensure the chainring and cranks are securely fastened and free from excessive wear. Lubricate the chain regularly.
- Péče o baterii (pokud je k dispozici): Although the battery is not included, if you are using a separate 36V battery, follow its manufacturer's instructions for charging, storage, and maintenance to maximize its lifespan.
- Obecná údržba kola: Continue with regular bicycle maintenance, including tire pressure, brake checks, and gear adjustments.
7. Řešení problémů
If you encounter issues with your conversion kit, refer to the following common problems and solutions:
| Problém | Možná příčina | Řešení |
|---|---|---|
| Motor neposkytuje pomoc | Low battery, loose connection, incorrect assist level, brake sensor engaged | Check battery charge, ensure all cables are secure, increase assist level on display, check brake levers are fully released. |
| Displej se nezapíná | Battery disconnected or dead, loose display cable, faulty display | Check battery connection and charge, ensure display cable is firmly connected, contact support if issue persists. |
| Nepřesné měření rychlosti | Speed sensor misaligned or damaged, magnet missing | Check speed sensor and magnet alignment on the wheel spoke, ensure sensor is clean. |
| Neobvyklé zvuky z motoru | Loose motor mounting, foreign object, internal motor issue | Check motor mounting bolts, inspect for debris, contact support if noise persists. |
For issues not listed here or if troubleshooting steps do not resolve the problem, please contact Viribus customer support.
8. Specifikace
Detailed technical specifications for the Viribus Mid-Drive Motor Conversion Kit:

Image 8.1: Motor Performance and Protection Features
- Číslo modelu: EBK-M025-L1
- Jmenovitý výkon: 250W
- Jmenovitý objemtage: 36V
- Max. Točivý moment: 80 Nm
- Cruising Speed: Až 25 km / h
- Kompatibilita středového složení: 68-73 mm length, 34-36 mm diameter
- Waterproof Rating (Motor): IP65
- Waterproof Rating (Display): IP67
- Velikost displeje: 2.4palcový barevný displej
- Provozní teplota: -20 až 70 °C
- Speciální vlastnosti: Advanced cadence and torque sensors, overcurrent protection, undervoltage protection, app connectivity.
- Hmotnost (položka): 5.8 kg
- Rozměry balení: 27 x 26.5 x 24 cm
9. Informace o záruce
The Viribus E-bike Mid-Drive Motor Conversion Kit comes with a limited warranty. Please refer to the specific terms and conditions provided at the time of purchase or contact Viribus customer support for details. The warranty description states 'NO', which typically means no additional specific warranty details are provided beyond the standard limited warranty.
10. Podpora
For technical assistance, warranty claims, or any questions regarding your Viribus E-bike Mid-Drive Motor Conversion Kit, please contact Viribus customer support through the retailer where the product was purchased or visit the official Viribus webstránky pro kontaktní informace.