1. Увод
This manual provides essential information for the installation, operation, and maintenance of your Varstrom 36V 250W E-Bike Conversion Kit. This kit is designed to transform a standard bicycle into an electric bicycle, offering enhanced riding capabilities with a powerful rear hub motor and an intuitive LCD display. Please read this manual thoroughly before installation and use to ensure safe and optimal performance.
2. Безбедносне информације
Always prioritize safety when operating an electric bicycle. Failure to follow safety guidelines can result in serious injury or damage to the product.
- Носи кацигу: Always wear an approved bicycle helmet while riding.
- Провере пре вожње: Before each ride, check the brakes, tire pressure, and ensure all connections are secure.
- Придржавајте се саобраћајних закона: Follow all local traffic laws and regulations for bicycles and electric bicycles.
- Временски услови: Exercise caution when riding in wet or adverse weather conditions.
- Изложеност води: Avoid submerging the motor or electrical components in water.
- Професионална инсталација: If you are unsure about any installation steps, seek assistance from a qualified bicycle mechanic.
3. Садржај пакета
Проверите да ли су све компоненте присутне и неоштећене приликом отварања паковања.
- 1 x 36V 250W Rear Hub Motor
- КСНУМКС к контролер
- 1 x DZ40 LCD Display
- 1 x Pair of Hydraulic Brake Sensors (or Mechanical Brake Levers, depending on selection)
- 1 x Thumb Throttle
- 1 x 1T4 Cable
- 1 x PAS Sensor (Left or Right side)
- Necessary mounting accessories

4. Спецификације
4.1. Спецификације мотора
- Волtage: 36В
- Снага: 250В
- Максимални обртни момент: 35 Нм
- Тип мотора: Brushless Geared Hub Motor
- Ефикасност: ≥78%
- Максимална брзина: Up to 30 km/h (470 rpm)
- Компатибилност величине точкова: 26", 27.5", 28"/29"/700C
4.2. Спецификације контролера
- Волtage: 36В
- Снага: 250В
- Максимална струја: 14А
4.3. DZ40 LCD Display Specifications
- Величина екрана: 1.3-инчни ЛЦД
- Видљивост: Clear visibility even in sunlight
- Функције: Displays speed, battery status, headlight indicators, PAS level (0-5)
- Пречник управљача: 22.2 мм


5. Водич за инсталацију
5.1. Захтеви за компатибилност
- Rear Dropout (OLD): Your bicycle's rear dropout must be between 135-138 mm.
- Тип кочнице: Compatible with bicycles equipped with disc brakes.
- Величина точка: Ensure you select the correct wheel size (26", 27.5", 28"/29"/700C) for your bicycle.

5.2. Кораци инсталације
The conversion kit is designed for straightforward installation. Follow these general steps:
- Припремите свој бицикл: Remove the existing rear wheel and any associated components that will be replaced.
- Install the Hub Motor: Mount the new rear hub motor wheel into the bicycle's rear dropout, ensuring it is securely fastened.
- Монтирајте контролер: Find a suitable location on your bike frame for the controller. Secure it using the provided mounting accessories.
- Install the DZ40 Display: Attach the DZ40 LCD display to your handlebar (22.2mm diameter).
- Install Brake Sensors/Levers: Replace your existing brake levers with the provided brake sensors or mechanical brake levers. Ensure they are properly aligned and functional.
- Install Thumb Throttle: Mount the thumb throttle on the handlebar in a comfortable position.
- Инсталирајте PAS сензор: Attach the Pedal Assist Sensor (PAS) to the crank arm area, ensuring proper alignment with the magnet disc.
- Повежите ожичење: Use the 1T4 cable to connect the display, throttle, and brake sensors to the controller. Connect the motor cable to the controller. Ensure all connections are firm and waterproof.
- Сигурни каблови: Route and secure all cables neatly along the bicycle frame to prevent snagging or damage.

6. Упутство за употребу
6.1. Укључивање/искључивање
To power on the system, press and hold the power button on the DZ40 display. To power off, press and hold the power button again.
6.2. DZ40 Display Functions
The DZ40 display provides real-time information about your ride:
- брзина: Тренутна брзина вожње.
- Статус батерије: Показује преостали ниво напуњености батерије.
- Headlight Indicators: Shows if the headlights are on (if connected).
- ПАС ниво: Displays the current level of pedal assistance (0-5). Use the '+' and '-' buttons to adjust the PAS level.
6.3. Режими вожње
The Varstrom E-Bike Conversion Kit offers three flexible riding modes:
- Чисто електрични режим: Engage the thumb throttle to propel the bicycle without pedaling.
- Pedal Assisted Mode (PAS): The motor provides assistance as you pedal. The level of assistance can be adjusted via the DZ40 display.
- Physical Riding Mode: The motor is off, and the bicycle operates as a standard pedal bike.

7. Одржавање
Regular maintenance ensures the longevity and safe operation of your e-bike conversion kit.
- Мотор: The brushless motor design requires low maintenance, contributing to its durability. Keep the motor free from excessive dirt and debris.
- Везе: Periodically check all electrical connections for tightness and signs of wear or corrosion.
- кочнице: Regularly inspect brake pads and cables (or hydraulic fluid) for wear and proper function. Adjust or replace as necessary.
- гуме: Maintain correct tire pressure as specified on your tire sidewall. Inspect tires for cuts or punctures.
- Чишћење: Очистите електрични бицикл помоћу огласаamp крпа. Избегавајте директно коришћење перача под високим притиском на електричним компонентама.
- Складиштење: When storing the e-bike for extended periods, ensure the battery is charged to approximately 50-70% and stored in a cool, dry place.
КСНУМКС. Решавање проблема
If you encounter issues with your e-bike conversion kit, refer to the following common problems and solutions:
| Проблем | Могући узрок | Решење |
|---|---|---|
| Мотор се не укључује | Loose electrical connection, low battery, PAS sensor issue, brake sensor engaged | Check all cable connections. Charge the battery. Ensure PAS sensor is correctly installed and not obstructed. Verify brake levers are fully released. |
| Екран се не укључује | Loose display cable, no power from battery, faulty display | Check display cable connection to controller. Ensure battery is connected and charged. If problem persists, contact support. |
| Inconsistent pedal assist | PAS sensor misalignment, dirty PAS sensor, incorrect PAS level setting | Check PAS sensor alignment and clean it. Adjust PAS level on the display. |
| Кочнице не раде ефикасно | Worn brake pads, loose cables, air in hydraulic system (for hydraulic brakes) | Inspect and replace worn brake pads. Adjust brake cable tension. For hydraulic brakes, bleeding may be required by a professional. |
If you cannot resolve an issue using this guide, please contact Varstrom customer support for further assistance.
9. Гаранција и подршка
For warranty information and customer support, please refer to the documentation provided with your purchase or contact your retailer. Keep your proof of purchase for warranty claims.
Manufacturer: Shenzhen Yihang Cross-border E-commerce Co., Ltd.