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TSDZ2B 36V/48V 250W/350W/500W Mid‑Drive Motor Kit, Dual‑Clutch Brushless Ebike Conversion Kit 80Nm, BB68/73 Bottom Bracket for Mountain City Snow Sand Bike
TSDZ2B 36V/48V 250W/350W/500W Mid‑Drive Motor Kit, Dual‑Clutch Brushless Ebike Conversion Kit 80Nm, BB68/73 Bottom Bracket for Mountain City Snow Sand Bike - Image 2
TSDZ2B 36V/48V 250W/350W/500W Mid‑Drive Motor Kit, Dual‑Clutch Brushless Ebike Conversion Kit 80Nm, BB68/73 Bottom Bracket for Mountain City Snow Sand Bike - Image 3
TSDZ2B 36V/48V 250W/350W/500W Mid‑Drive Motor Kit, Dual‑Clutch Brushless Ebike Conversion Kit 80Nm, BB68/73 Bottom Bracket for Mountain City Snow Sand Bike - Image 4
TSDZ2B 36V/48V 250W/350W/500W Mid‑Drive Motor Kit, Dual‑Clutch Brushless Ebike Conversion Kit 80Nm, BB68/73 Bottom Bracket for Mountain City Snow Sand Bike - Image 5
TSDZ2B 36V/48V 250W/350W/500W Mid‑Drive Motor Kit, Dual‑Clutch Brushless Ebike Conversion Kit 80Nm, BB68/73 Bottom Bracket for Mountain City Snow Sand Bike - Image 6

TSDZ2B 36V/48V 250W/350W/500W Mid‑Drive Motor Kit, Dual‑Clutch Brushless Ebike Conversion Kit 80Nm, BB68/73 Bottom Bracket for Mountain City Snow Sand Bike

TSDZ2B 36V/48V 250W/350W/500W mid‑drive motor kit, 80Nm max torque, dual‑clutch & dual‑side torque sensor, BB68/73 bottom bracket, 6Pin/8Pin optional, CE‑certified for ebike DIY conversion.

 

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TSDZ2B 36V/48V 250W / 350W / 500W Mid‑Drive Motor Conversion Kit

The high‑performance TSDZ2B mid‑drive motor kit delivers strong power assistance for mountain bikes, city commuter bikes, snow bikes and sand bikes. Supports multiple voltage & power options: 36V / 48V, 250W / 350W / 500W. Equipped with advanced dual‑clutch system, built‑in controller and dual‑side torque sensor, it brings reliable torque output and smooth acceleration for various riding terrains.

Compatibility & Application

✅ Fit Bike Types: Mountain bike, city bike, snow bike, sand bike

✅ Bottom Bracket: 68mm / 73mm BB

✅ Chainring: 42T

✅ Voltage Options: 36V, 48V

✅ Power Options: 250W, 350W, 500W

✅ Two motor versions: 6‑Pin (No throttle) / 8‑Pin (With throttle)

✅ Supports throttle‑equipped or throttle‑free system setups

✅ Multiple compatible display options

Precise Specifications

ParameterValue
ModelTSDZ2B Mid‑Drive Conversion Kit
Rated Voltage36V / 48V
Rated Power250W / 350W / 500W
Max Torque80 N.M
Motor Weight3.6 Kg
Package Weight6.000 Kg
Package Dimension31 × 26 × 24 cm
Clutch TypeDual‑Clutch System
ControllerBuilt‑in controller
SensorDual‑side torque sensor
Power Assist Ratio36% ~ 300%
Speed Mode25km/h (Limited)；30‑40km/h (Unlimited)
Chainwheel42T
Bottom Bracket Size68mm /73mm
CertificationCE Certified
DisplayLCD Display included
Special FeatureCurrent cutoff once pedaling stopped

Package Includes

1 × TSDZ2B Mid‑Drive Motor (Select voltage‑power & 6‑Pin / 8‑Pin version)

1 × 42T Chainring

1 × LCD Display

1 × Speed Sensor & Magnet

Related mounting hardware

Key Features

✅ Multi‑Voltage & Multi‑Power Options: Available in 36V/48V, 250W/350W/500W variants to satisfy different regional regulations and riding‑power demands.
✅ Advanced Dual‑Clutch Mechanism: Smooth engagement and dis‑engagement improves riding efficiency and comfort across all terrains.
✅ Built‑in Controller & Dual‑Side Torque Sensor: Sensitive torque detection, current cuts off automatically when pedaling stops; high efficiency with low battery consumption for extended riding range.
✅ Multiple‑Scene Application: Works for mountain, city, snow and sand bicycles, supports different wheel sizes, compatible with throttle or non‑throttle configurations.
✅ CE‑Certified Brushless Motor: Meets international safety standards for stable long‑term performance.
✅ Flexible Display Compatibility: Supports multiple display models; two motor variants for different functional requirements.
✅ Optimized Drivetrain Matching: Matches 42T chainring and 68/73mm bottom bracket for precise chainline and smooth drivetrain operation.
✅ Compact Kit Package: 31×26×24cm, total package weight 6.000 kg, convenient for storage and shipping, perfect for DIY ebike conversion.

Specifications

Brand: Tongsheng

Product Name: TSDZ2B Mid‑Drive Motor Conversion Kit

Voltage:36V / 48V

Power:250W / 350W / 500W

Max Torque:80N.M

Motor Weight:3.6Kg

Package Weight:6.000Kg

Package Size:31 x 26 x 24 cm

Clutch:Dual‑Clutch

Controller:Built‑in

Sensor:Dual‑side torque sensor

Assist Ratio:36%~300%

Speed:25km/h(Limited),30‑40km/h(Unlimited)

Chainring:42T

Bottom Bracket:68mm /73mm

Certification:CE

Display:LCD Display

Color: As shown in pictures

Package: Complete TSDZ2B conversion kit

Important Notes

⚠️ Critical Version Reminder
  • 6PIN MOTOR: Without throttle function, only compatible with 6‑pin display.
  • 8PIN MOTOR: With throttle function; works with 8‑pin display or 8‑pin‑to‑6‑pin 1T2 cable.Returns will NOT be accepted if wrong voltage / power / pin‑version is purchased. Please select correct specs carefully before checkout.

⚠️ Speed Sensor Installation Requirement

Secure speed sensor with cable tie. Maintain 10‑15 mm gap between sensor and magnet. Align arrow mark on speed sensor towards magnet. Incorrect installation will cause malfunction of torque assist and speed reading.

⚠️ Post‑installation Operation Guidelines
  1. Do NOT test motor by hand spinning crank. The TSDZ2B mid‑motor will not run under no‑load condition.
  2. Power‑on the display first before sitting on bike and placing feet on pedals; improper sequence may cause torque sensor failure.
Minor color differences may appear due to lighting and screen display variations.
Only items listed in packing list are included; other reference‑picture accessories are not contained.
Great DIY upgrade kit for ebike hobbyists, repair workshops and wholesale distributors.
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Frequently Asked Questions

We supply genuine OEM parts and premium compatible aftermarket replacement parts for e-bikes, including motor components, controllers, throttles, PAS sensors, wiring harnesses, connectors and Bosch form-factor batteries.

We serve mainstream drive system manufacturers: Ananda, Bafang, Aikema, Tongsheng, Shengyi, Bosch and more. We also provide repair components for complete e-bike brands including Sur‑Ron, Aventon, Trek and many others.

All items are brand-new and inspected before shipment. We do not supply second-hand or refurbished goods.

Our team verifies compatibility according to your bike model, motor info or original part photos. We confirm available OEM parts or recommend workable alternative solutions.

Yes. Flexible order sizes are supported, ranging from single spare parts to bulk purchases.

Sea freight, air freight and rail transport are optional.

Lead time varies by item and shipping mode. We confirm exact timelines before each order and share tracking updates.

We provide part identification, model matching and full order follow-up support.