1. Во текотview
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 OverviewОва видео дава општ прегледview of the Tong-Sheng mid-drive motor kit and its capabilities.
2. Поставување и инсталација
Before beginning installation, ensure your bicycle is clean and stable. Gather all components from the packing list and necessary tools.
2.1. Список за пакување
Your kit includes the following components:
- TSDZ8 48V 750W Mid Drive Motor
- SWM58 Display
- 1T4 Main Wire Harness
- Гас на палецот
- 44T Вртеж за синџири
- Сензор за брзина
- Клуч
- Brake Levers (Optional)
- Рачки со чудак
- Подлошки

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. Чекори пред инсталација
- 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. Инсталација на мотор
- 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. Инсталација на компоненти
- Сензор за брзина: Mount the speed sensor on the rear chainstay, ensuring the magnet on the wheel spoke passes within 10-15mm of the sensor.
- Рачки на сопирачките: Replace your existing brake levers with the provided ones, which include motor inhibitor sensors.
- Гас на палецот: Install the thumb throttle on your handlebar.
- SWM58 Display: Mount the SWM58 display on your handlebar in a comfortable viewпозиција.
- Жици: 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.
- Батерија: 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. Упатства за работа
3.1. SWM58 Display Functions
The SWM58 display provides essential information and control over your e-bike system:
- Вклучување/исклучување: Притиснете и задржете го копчето за вклучување за да го вклучите или исклучите системот.
- Брзина: Displays current speed (KM/H or MPH).
- Ниво на батерија: Го прикажува преостанатото полнење на батеријата.
- Нивоа на помош: Adjust pedal-assist levels (3 or 5 levels available) to control motor assistance.
- Trip/ODO: View current trip distance or total odometer reading.
- Кодови за грешки: Displays error codes if any system malfunctions occur.
- Индикатор на фаровите: Indicates if the headlight is on.
- Индикатор за сопирање: Shows when brakes are engaged.

Image: SWM58 Display. This image details the features and specifications of the SWM58 display unit.
3.2. Режими на возење
- Режим за помош на педалите: The motor provides assistance as you pedal. Adjust the assist level via the SWM58 display.
- Режим на гас: Use the thumb throttle for power on demand, without pedaling.
4. Одржување
Regular maintenance ensures the longevity and optimal performance of your e-bike conversion kit.
- Нега на батеријата: Charge the battery regularly, even when not in use, to maintain its health. Store the battery in a cool, dry place. Avoid fully discharging the battery.
- 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.
- Сопирачки: Periodically check brake pads for wear and ensure brake levers are functioning correctly.
- Кабли: Inspect all cables for wear, damage, or loose connections. Ensure they are securely fastened to the frame.
5 Смена на проблеми
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:
- Моторот не се вклучува: 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.
- Екранот не се вклучува: Check battery connection and charge level. Inspect the display cable for damage.
- Неконзистентна моќност: Ensure the speed sensor is correctly aligned with the magnet (10-15mm gap). Check for loose connections in the motor or display wiring.
- Кодови за грешки: Consult the SWM58 display manual for specific error code meanings and troubleshooting steps.
6. Спецификации
6.1. Спецификации на моторот

Image: Motor Compatibility and Specifications. This image provides a visual and tabular breakdown of the motor's technical data.
| Карактеристика | Вредност |
|---|---|
| Оценето волtage | 48V |
| Номинална моќност | 750 W |
| Макс вртежен момент | > 120 N.m |
| Максимална брзина | ~ 50 км/ч |
| Сензор за педали | Speed and Torque Integrated |
| Стандард на вратило | JIS |
| Големина (L*Ш*В) | 126*170*204mm (4.96*6.69*8.03inch) |
| Тежина | 4.8 кг |
| Ефикасност | > 80% |
| Оценка на бучава | <55 dB |
| 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.
| Карактеристика | Вредност |
|---|---|
| Екран | 3.8 inch High-Brightness Color LCD |
| Димензии (Д*Ш*В) | 93.4 mm x 56.4 mm x 6.4 mm |
| Единица за брзина | KMH/MPH |
| Оперативен волtages | 24V, 36V, 48V, 52V |
| Поставување на ограничување на брзината | 0 to 100km/h |
| Handlebar Mounting Diameter | 31.8mm/25.4mm/22.2mm (Bottom only supports 22.2mm) |
| Нивоа на помош | 3, 5 |
6.3. Battery Specifications (Optional)

Image: Battery Specification. This image provides detailed specifications for various optional battery configurations.
| Карактеристика | Вредност |
|---|---|
| Батерија | 48V 17.5Ah |
| Енергија | 840 Wh |
| Ќелија | Grade A 18650 3500mAh |
| BMS заштита | 30 А |
| USB порта | 5V 1A |
| Температура на полнење | 0-45°C |
| Температура на празнење | -15-65°C |
| Големина | 368*90*111мм |
| Тежина | Околу 4 кг |
| Циклус на живот | > 1000 XNUMX пати |
| Compatible Motor Power | 250W 350W 500W 750W 1000W 1200W 1500W |
| Заштитна функција | Заштита од прекумерна струја, Overvoltage Protection, Overload Protection, Overcharge Protection, Overdischarge Protection, Temperature Protection, Short Circuit Protection, Cell Voltagе-балансирање |
7. Гаранција и поддршка
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 webсајт.
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.
Можете исто така да ја посетите Varstrom Store on Amazon за дополнителни ресурси и информации за производот.