
CITY conversion kit for bike Tongsheng TSDZ2-C MID (LEGAL mode 250W)
- The kit is capable of operating in a power-limited mode of 250W and 25 km/h.
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CITY conversion kit for bike
250W / 600W MID TSDZ2-B
The TSDZ2-B 250W is an efficient MID Drive motor for electric bicycles, offering a central drive placement. With its advanced pressure sensor, the ride is smooth and adjusted to pedaling force. This is the perfect kit for converting a bicycle into an electric one, ideal for city routes. By choosing the TSDZ2-B, you gain reliable support while riding and user convenience.
The TSDZ2-C is the latest version of the popular TSDZ2 and TSDZ2-B motors. Its main improvement is an enhanced heat dissipation system, which provides more efficient cooling of the motor. Thanks to improved heat management, the motor operates more consistently under prolonged load, resulting in greater durability and enhanced overall performance.
An electric bicycle is the cheapest form of transport. How much will it cost you to travel 100 kilometers on an electric bicycle? Considering the average wear of components, battery durability, and electricity prices, the cost for such a distance will be… around 0,2€.
What is included in the complete kit?
- Tongsheng TSDZ2-C Mid-Drive Electric Motor
- B02N-U Display
- Thumb Throttle
- Brake Levers with Cut-Off Switches
- Cable with Waterproof 9-Pin EBUS-6 Tongsheng Connector
Advantages of the Mid-Drive Motor Kit
Advanced Sensor System
The TSDZ2-C motor is equipped with both torque and speed sensors that measure the force applied by the rider while pedaling. As a result, the motor assistance automatically adjusts to the rider's input, providing a smooth, natural, and intuitive riding experience.
Quiet Operation
Thanks to its brushless motor technology, the TSDZ2-C operates very quietly. This enhances riding comfort and is especially beneficial in urban environments where minimizing noise is important.
High Energy Efficiency
The motor offers high efficiency (>85%), resulting in extended riding range and reduced energy consumption. This allows riders to enjoy longer trips without worrying about frequent battery recharging.
Versatility
The TSDZ2-C is compatible with a wide range of bicycles, including mountain, trekking, and city bikes. Its flexibility allows riders to adapt the drive system to their individual needs and preferred riding style.
Legal 250W City Conversion Kit
The Tongsheng TSDZ2-C Mid-Drive Kit is available in a legal 250W configuration, making it suitable for use as a compliant electric bicycle conversion kit in regions where 250W pedal-assist regulations apply.

Note: Due to the design of its geared drivetrain, the TSDZ2-C is not intended for heavy-duty commercial use, such as professional courier or delivery services. For such applications, a gearless (direct-drive) motor is recommended.
Spare Parts Availability
The store also offers a range of spare parts, including:
- Motor stator
- Motor rotor
- Torque sensor
- Crank arms
- Motor controller
This makes maintenance straightforward and helps extend the service life of the conversion kit.
Brand
Power in legal mode
250W, 25 km/h
Maximum power (peak)
up to 600W
Voltage
36V
Maximum cadence
120 RPM
Model
TSDZ2-C
Torque
Up to 80 Nm
Motor installation
Bottom bracket axle (68 mm)
Drive
MID
Weight
3,6 kg
24 months for consumers, 12 months for companies
The store guarantees repair or replacement of equipment for up to 24 months for consumers and up to 12 months for companies from the date of purchase. Complete the complaint form available on the store's website.
What is not covered by the warranty?
- Errors in installation or maintenance
- Thermal damage (overheating)
- Modification/interference in the device casing
- Modifications/changes inside the device
- Consumables (wear items): Hall sensors, power cable, axle, bearings, gear module and clutch.
- Mechanical damage caused by incorrect use of the product. e.g. damage from falls, excessive mechanical loads
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