1. Заview
The Varstrom Tong-Sheng 48V 750W Mid Drive E-Bike Conversion Kit transforms your standard bicycle into a high-performance electric bike. Designed for versatility, this kit provides powerful assistance for various terrains, from city commuting to challenging mountain trails. Its integrated torque sensor ensures a natural and responsive riding experience, adapting motor assistance to your pedaling force.
This kit is compatible with most standard bikes featuring a 68-73mm bottom bracket and 34-36mm inner diameter, making it a DIY-friendly solution for e-bike enthusiasts.
Video: Tong-Sheng Mid Drive Motor Kit Overview. Это видео дает общее представлениеview of the Tong-Sheng mid-drive motor kit and its capabilities.
2. Настройка и установка
Before beginning installation, ensure your bicycle is clean and stable. Gather all components from the packing list and necessary tools.
2.1. Упаковочный лист
В ваш комплект входят следующие компоненты:
- TSDZ8 48V 750W Mid Drive Motor
- SWM58 Display
- 1T4 Main Wire Harness
- Большой палец газа
- 44T Звездочка
- Датчик скорости
- Гаечный ключ
- Brake Levers (Optional)
- Шатуны
- Шайбы

Image: Packing List. This image displays all the components included in the Varstrom Tong-Sheng 48V 750W Mid Drive E-Bike Conversion Kit.
2.2. Шаги перед установкой
- Remove your bike's existing crankset, chainring, and bottom bracket.
- Clean the bottom bracket shell thoroughly.
- Ensure your bike's bottom bracket dimensions are compatible (68-73mm width, 34-36mm inner diameter).

Image: Motor Compatibility and Specifications. This image illustrates the dimensions and compatibility requirements for the mid-drive motor.
2.3. Установка двигателя
- Attach the 44T chainring to the mid-drive motor using the provided bolts.
- Carefully slide the motor assembly into the bottom bracket shell of your bike frame.
- Secure the motor using the Y-shaped motor mount bracket on the left side of the bike. Tighten the fixing nut with 40Nm force.
- Install the crank arms onto the motor spindle and secure them.
- Install the chain, ensuring proper tension.
2.4. Установка компонентов
- Датчик скорости: Mount the speed sensor on the rear chainstay, ensuring the magnet on the wheel spoke passes within 10-15mm of the sensor.
- Тормозные рычаги: Replace your existing brake levers with the provided ones, which include motor inhibitor sensors.
- Большой палец газа: Install the thumb throttle on your handlebar.
- SWM58 Display: Mount the SWM58 display on your handlebar in a comfortable viewпозиция.
- Проводка: Connect all components (motor, display, throttle, brake levers, speed sensor) using the 1T4 main wire harness. Ensure all connections are secure and waterproof. Use zip ties to manage cables neatly along the frame.
- Аккумулятор: Install the battery mount on your bike frame (if applicable) and then slide the battery onto the mount.
Video: BAFANG BBS Mid Drive Motor for eBike - Installation Video. This video demonstrates the detailed installation process for a mid-drive motor kit.
Video: Ebike Conversion Kit Installation. This video provides a general guide on installing an e-bike conversion kit.
3. Инструкция по эксплуатации
3.1. SWM58 Display Functions
The SWM58 display provides essential information and control over your e-bike system:
- Включение/выключение питания: Нажмите и удерживайте кнопку питания, чтобы включить или выключить систему.
- Скорость: Displays current speed (KM/H or MPH).
- Уровень заряда батареи: Показывает оставшийся заряд батареи.
- Уровни помощи: Adjust pedal-assist levels (3 or 5 levels available) to control motor assistance.
- Trip/ODO: View current trip distance or total odometer reading.
- Коды ошибок: Displays error codes if any system malfunctions occur.
- Индикатор фар: Указывает, включена ли фара.
- Индикатор тормозной системы: Shows when brakes are engaged.

Image: SWM58 Display. This image details the features and specifications of the SWM58 display unit.
3.2. Режимы езды
- Режим помощи при педалировании: The motor provides assistance as you pedal. Adjust the assist level via the SWM58 display.
- Режим дроссельной заслонки: Use the thumb throttle for power on demand, without pedaling.
4. Техническое обслуживание
Регулярное техническое обслуживание обеспечивает долговечность и оптимальную работу вашего комплекта для переоборудования велосипеда в электровелосипед.
- Уход батареи: Для поддержания работоспособности аккумулятора регулярно заряжайте его, даже когда он не используется. Храните аккумулятор в прохладном, сухом месте. Избегайте полной разрядки аккумулятора.
- Motor & Drivetrain: Keep the motor and chainring clean. Lubricate the chain regularly. Check for any loose bolts or connections on the motor and other components.
- Тормоза: Periodically check brake pads for wear and ensure brake levers are functioning correctly.
- кабели: Inspect all cables for wear, damage, or loose connections. Ensure they are securely fastened to the frame.
5. Поиск Неисправностей
If you encounter issues with your e-bike kit, refer to the SWM58 display for any error codes. Common issues and their potential solutions are listed below:
- Двигатель не включается: Check all cable connections, especially the main power cable and motor sensor. Ensure the battery is charged and properly seated. Verify that the brake levers are not stuck in the engaged position.
- Дисплей не включается: Check battery connection and charge level. Inspect the display cable for damage.
- Непостоянная мощность: Ensure the speed sensor is correctly aligned with the magnet (10-15mm gap). Check for loose connections in the motor or display wiring.
- Коды ошибок: Consult the SWM58 display manual for specific error code meanings and troubleshooting steps.
6. Технические характеристики
6.1. Технические характеристики двигателя

Image: Motor Compatibility and Specifications. This image provides a visual and tabular breakdown of the motor's technical data.
| Особенность | Ценить |
|---|---|
| Номинальный объемtage | 48В |
| Номинальная мощность | 750 Вт |
| Максимальный крутящий момент | >120Н.м |
| Максимальная скорость | ~50км/ч |
| Датчик педали | Speed and Torque Integrated |
| Стандарт вала | JIS |
| Размер (Д*Ш*В) | 126*170*204mm (4.96*6.69*8.03inch) |
| Масса | 4.8кг |
| Эффективность | >80% |
| Уровень шума | <55дБ |
| Bike Recommendation | E-Trekking/E-city / E-tour |
6.2. SWM58 Display Specifications

Image: SWM58 Display. This image details the features and specifications of the SWM58 display unit.
| Особенность | Ценить |
|---|---|
| Экран | 3.8 inch High-Brightness Color LCD |
| Размеры (Д*Ш*В) | 93.4мм х 56.4мм х 6.4мм |
| Единица скорости | кмч/миль в час |
| Рабочий объемtages | 24V, 36V, 48V, 52V |
| Установка ограничения скорости | от 0 до 100 км/ч |
| Handlebar Mounting Diameter | 31.8mm/25.4mm/22.2mm (Bottom only supports 22.2mm) |
| Уровни помощи | 3, 5 |
6.3. Технические характеристики батареи (опционально)

Image: Battery Specification. This image provides detailed specifications for various optional battery configurations.
| Особенность | Ценить |
|---|---|
| Аккумулятор | 48В 17.5Ач |
| Энергия | 840Втч |
| Клетка | Grade A 18650 3500mAh |
| BMS Защита | 30А |
| USB-порт | 5В 1А |
| Температура зарядки | 0-45°С |
| Температура нагнетания | -15-65°С |
| Размер | 368*90*111 мм |
| Масса | Около 4 кг |
| Цикл жизни | >1000 раз |
| Compatible Motor Power | 250W 350W 500W 750W 1000W 1200W 1500W |
| Функция защиты | Защита от перегрузки по току, перенапряжениеtage Protection, Overload Protection, Overcharge Protection, Overdischarge Protection, Temperature Protection, Short Circuit Protection, Cell Voltagе Балансировка |
7. Гарантия и поддержка
Varstrom products are designed for durability and performance. For warranty information, please refer to the specific warranty card included with your product or visit the official Varstrom webсайт.
For technical support, troubleshooting assistance, or any questions regarding your e-bike conversion kit, please contact Varstrom customer service through the retailer where you purchased the product or via the contact information provided in your product documentation.
Вы также можете посетить Varstrom Store on Amazon для получения дополнительных ресурсов и информации о продукте.