1. Wprowadzenie
This manual provides detailed instructions for the installation, operation, and maintenance of your Varstrom 48V 500W Ebike Hub Motor Conversion Kit. Please read this manual thoroughly before attempting installation or operation to ensure proper function and safety. This kit is designed to convert a standard pedal bicycle into an electric bicycle, offering enhanced performance and efficiency.
2. Informacje dotyczące bezpieczeństwa
Always prioritize safety when working with electrical components and bicycles. Failure to follow safety guidelines can result in serious injury or damage to the product.
- Zalecana profesjonalna instalacja: If you are unsure about any step, seek assistance from a qualified bicycle mechanic or ebike specialist.
- Odłączenie zasilania: Always disconnect the battery before performing any installation, maintenance, or troubleshooting.
- Bezpieczeństwo elektryczne: Avoid exposing electrical components to water or extreme moisture. Ensure all connections are secure and properly insulated.
- Kontrola hamulców: After installation, thoroughly test your bicycle's brakes to ensure they are functioning correctly.
- Zastosowanie kasku: Always wear a helmet and appropriate safety gear when riding an ebike.
- Przepisy lokalne: Należy zapoznać się ze wszystkimi lokalnymi przepisami i regulacjami dotyczącymi użytkowania rowerów elektrycznych, ograniczeń prędkości i mocy wyjściowej oraz ich przestrzegać.
- Obsługa baterii: Handle the battery with care. Do not puncture, short-circuit, or expose it to extreme temperatures. Use only the charger provided or recommended by Varstrom.
3. Zawartość opakowania
Verify that all components listed below are present in your package. If any items are missing or damaged, contact your seller immediately.

Figure 3.1: Varstrom Ebike Conversion Kit Package Contents
- Rear Wheel & Hub Motor (Pre-assembled)
- Kontroler
- Brake Lever or Hydraulic Brake Sensor (Optional)
- Przepustnica kciukowa
- Obudowa kontrolera
- Varstrom LCD Display (Optional)
- Bateria (opcjonalnie)
- Przewód przedłużający
- PAS (czujnik wspomagania pedałowania)
- Kabel 1T4
- Reflektor
- Paski plastikowe
- Sticker (Motor Specification Label)
4. Koniec produktuview i Specyfikacje
The Varstrom 48V 500W Ebike Hub Motor Conversion Kit provides a powerful and efficient solution for electrifying your bicycle. It features a brushless gear drive motor, various display options, and compatibility with different bicycle types.
4.1. Kluczowe komponenty

Figure 4.1: Main Components of the Conversion Kit
- Silnik piasty: 48V 500W brushless gear drive motor, available for front or rear wheel installation. Features helical nylon gears for durability and quiet operation.
- Kontroler: Manages power delivery to the motor. Max current 22A/30A.
- Wyświetlacz: Optional LCD displays (VD03, EKD01, VD04) provide ride data, PAS level control, and optional features like remote locking/unlocking and navigation.
- Czujnik PAS: Pedal Assist Sensor detects pedaling motion to provide motor assistance.
- Przepustnica: Provides on-demand power assistance.
- Dźwignie/czujniki hamulca: Cut off motor power when brakes are applied for safety.
4.2. Dane techniczne silnika

Figure 4.2: Varstrom Hub Motor Specifications Overview

Figure 4.3: 125XVH Rear Hub Motor (Performance Version) Specifications
| Specyfikacja | Wartość |
|---|---|
| Typ silnika | Silnik bezszczotkowy z napędem przekładniowym |
| Moc znamionowa | 500 watów |
| Moc szczytowa | 864 watów |
| Znamionowa objętośćtage | 48 V (prąd stały) |
| Maksymalna prędkość | 45-50 KM/H (approx. 31 MPH) |
| Maksymalny moment obrotowy | 65 Nm |
| Efektywność | ≥80% |
| Compatible Dropout Size | 135-145mm Rear Dropout |
| Zgodność typu hamulca | Hamulec tarczowy / hamulec V |
| Typ kasety | ≤10-Speed Cassette |
| Stopień hałasu | <60dB |
| Stopień wodoodporności | IPX5 |
| Temperatura pracy | -20°C ~ 45°C |
4.3. Specyfikacje baterii (opcjonalnie)
If your kit includes a battery, refer to the following specifications. Note that battery models and capacities may vary.

Figure 4.4: Varstrom Ebike Battery Specifications
4.4. Opcje wyświetlania

Figure 4.5: Varstrom Display Options (VD03, EKD01, VD04)
The kit may come with one of the following display options, each offering different features:
- Wyświetlacz VD03: 1.5" LCD screen, 9 PAS levels, IP67 waterproof, English language support.
- Wyświetlacz EKD01: 2.4" TFT screen, 9 PAS levels, IP67 waterproof, navigation function, multi-language support, remote locking/unlocking via app.
- Wyświetlacz VD04: 3.5" IPS screen, 9 PAS levels, IP67 waterproof, navigation function, multi-language support, remote locking/unlocking via app.
5. Instrukcja instalacji
Careful installation is crucial for the safe and reliable operation of your ebike kit. Follow these steps sequentially.
5.1. Kontrole przed instalacją
- Bicycle Compatibility: Ensure your bicycle frame has the correct dropout spacing (135-145mm for rear hub motor, 100mm for front hub motor).
- Rozmiar koła: Confirm the wheel size of your kit matches your bicycle (20", 26", 27.5", or 700C).

Figure 5.1: Dropout and Brake Compatibility

Figure 5.2: How to Choose the Correct Wheel Size
5.2. Motor Wheel Installation
- Remove your existing bicycle wheel.
- Install the new motor wheel into the appropriate dropout (front or rear). Ensure the motor cable exits towards the frame.
- Secure the wheel with axle nuts, ensuring it is centered and tight.
- If using disc brakes, install the disc rotor onto the motor hub. If using V-brakes, ensure the rim is properly aligned.
5.3. Montaż kontrolera
Mount the controller in a secure, protected location on your bike frame, typically using the provided controller case and plastic straps. Ensure it is away from moving parts and potential water splashes.
5.4. Połączenia okablowania
Refer to the wiring diagram below for connecting all components to the controller. Ensure all connectors are firmly seated and waterproofed where applicable.

Figure 5.3: Easy Installation Wiring Diagram
- Connect the motor cable to the controller.
- Install the PAS sensor on the left side of the bottom bracket. Ensure the sensor and magnet disc are correctly aligned and spaced. Connect the PAS sensor cable to the controller.
- Mount the thumb throttle on the handlebar and connect its cable to the controller.
- Install the brake levers (or brake sensors) on the handlebars and connect their cables to the controller.
- Mount the display on the handlebar and connect its cable to the controller.
- Connect the headlight to the designated port on the controller or 1T4 cable.
- If using an optional battery, connect it to the controller.
5.5. Zarządzanie kablami
Use the provided plastic straps to neatly secure all cables along the bicycle frame. Ensure cables do not interfere with steering, braking, or pedaling, and are protected from moving parts.
6. Instrukcja obsługi
Familiarize yourself with the operation of your new ebike system before riding.
6.1. Włączanie/wyłączanie zasilania
To power on the system, press and hold the power button on your display. To power off, press and hold the power button again.
6.2. System wspomagania pedałowania (PAS)
The PAS system provides motor assistance based on your pedaling. Use the '+' and '-' buttons on your display to adjust the PAS level. Higher levels provide more assistance.
6.3. Działanie przepustnicy
The thumb throttle provides instant motor power, allowing you to ride without pedaling. Use it cautiously, especially when starting from a standstill.
6.4. Funkcje wyświetlania
Your display provides important information and control over your ebike system. Functions may vary slightly depending on your specific display model (VD03, EKD01, VD04).
- Wyświetlacz prędkości: Current speed, average speed, max speed.
- Poziom naładowania baterii: Wskazuje pozostały poziom naładowania baterii.
- PAS Level Indicator: Pokazuje aktualny poziom wspomagania pedałowania.
- Licznik kilometrów/odległość podróży: Tracks total distance or trip distance.
- Sterowanie reflektorami: Turn the headlight on/off via the display.
- Kody błędów: Displays diagnostic codes if a system fault occurs.
- Quick-Switch 25 km/h Mode: For compliance with certain road legality requirements, some displays offer a quick switch to limit speed to 25 km/h (typically by holding '+' and '-' buttons together).
- App Connectivity (EKD01/VD04): Supports remote locking/unlocking and advanced ride data tracking via the 'BIKEGO+' app.
7. Konserwacja
Regular maintenance ensures the longevity and optimal performance of your Varstrom ebike kit.
- Czyszczenie: Regularnie czyść silnik, sterownik i akumulator za pomocąamp szmatką. Unikaj mycia elementów elektrycznych pod wysokim ciśnieniem.
- Pielęgnacja baterii: Przechowuj akumulator w chłodnym, suchym miejscu. Ładuj go regularnie, nawet jeśli nie jest używany, aby utrzymać go w dobrym stanie. Unikaj całkowitego rozładowania akumulatora.
- Kontrola okablowania: Periodically check all cables and connectors for wear, damage, or loose connections. Ensure waterproof connections are sealed.
- Kontrola silnika: Listen for unusual noises from the motor. Ensure the wheel spins freely when power is off.
- Układ hamulcowy: Regularly inspect and maintain your bicycle's brake system. Ensure brake levers/sensors are functioning correctly to cut motor power.
- Ciśnienie w oponach: Maintain correct tire pressure for safety and efficiency.
8. Rozwiązywanie Problemów
W tej sekcji omówiono typowe problemy, z którymi możesz się spotkać. W przypadku bardziej złożonych problemów skontaktuj się z obsługą klienta.
| Problem | Możliwa przyczyna | Rozwiązanie |
|---|---|---|
| System nie włącza się | Battery not charged or connected; Loose wiring; Faulty display/controller | Check battery charge and connection; Inspect all wiring; Contact support if issue persists. |
| Silnik nie wspomaga | PAS sensor misaligned or damaged; Brake levers engaged; Low battery; Faulty motor/controller | Check PAS sensor alignment and connection; Ensure brake levers are not engaged; Charge battery; Contact support. |
| Wyświetlacz pokazuje kod błędu | Specific component fault | Refer to your display's specific manual for error code meanings or contact support with the code. |
| Nietypowy hałas silnika | Loose components; Internal motor issue | Check for loose parts; Discontinue use and contact support if noise persists. |
9. Gwarancja i wsparcie
Varstrom products are manufactured to high-quality standards. For warranty information, please refer to the documentation provided with your purchase or contact your seller directly. Keep your proof of purchase for warranty claims.
For technical support or assistance with installation and troubleshooting, please contact the Varstrom customer service team or your authorized dealer. Provide your product model number (125XVH-500) and a detailed description of the issue when seeking support.





