Description
SPECIFICATIONS
Brand Name: varstrom
Certification: CE
Compatible Bottom Bracket: BB 68-73mm
Design: Brushless
High-concerned chemical: None
Motor: Side Hung Motor
Origin: Mainland China
PAS Sensor Type: Torque sensor
Rated Power: 750W / 500W / 250W Option
Voltage: 48V / 36V
Waterproof Grade: IP X5
Wattage: > 400w
| Ride Smarter|Go Further
đ”ââïžâĄăTongsheng TSDZ Series Mid-Drive Motor KitsăâĄđ”ââïž
Convert Your Bicycle into a Natural Riding E-Bike!
Torque Sensor System | Smooth Power Assistance | Disc Brake or V Brake Compatible
đ Choose Tongsheng Mid-Drive for the Most Natural E-Bike Conversion Experience!
Tongsheng - Power That Feels Like Your Own Strength.
[đ Detailed Installation Guide] [đĄïž 12 Months Warranty] [đ US, EU,UK Shipping Available]

đ© Key Features:
â Torque Sensor Technology â Instantly responds to pedal pressure for natural riding feel
â Zero-Start Capability â Provides power from complete stop without throttle
â 2025 Upgraded Design â Enhanced gear positioning for better sealing and longer lifespan
â IPX5 Waterproof â Reliable performance in various weather conditions

đ Universal Compatibility:
Bottom Bracket: 68-73mm length, 33.5-36mm diameter
   Brake System: Disc brake or V-brake compatible
   Frame Compatibility: Fits 95% of standard bicycle frames
đ Three Power Options:
đž TSDZ 750W Version
Max Speed: 45-55 km/h
Max Torque: 140N.m
Waterproof: IP65

đč TSDZ2B 500W Version
Max Speed: 38-45 km/h
Max Torque: 80N.m
Waterproof: IP65
đč TSDZ2B 250W Version
Max Speed: 25-32 km/h
Max Torque: 80N.m
Waterproof: IP65

Â
đ„ïž Smart Display Options:
DZ40| SW2-M58| EKD01 (Only EKD01 Bluetooth connectivity + mobile app)

đ§ BRAKE SYSTEM OPTIONS | Safety Tailored for Your E-Bike
Â
đ Quick Comparison
Feature             | Brake Lever   |  Brake Sensor
Motor Cutoff       |  â Built-in    |  â Add-on
Install Type         | Replace lever  |  Attach to existing lever
Brake Compatibility  | Mechanical only| Hydraulic & Mechanical
Â
đŻ How to Choose
Choose the Brake Lever if: Youâre building a new e-bike or want a clean, all-in-one setup.
Choose the Brake Sensor if: You already like your current brakes (especially hydraulic) and just need the cutoff function.
Both options provide reliable motor cutoff â itâs about how you want to integrate it into your ride.

đŠ Kit Includes:
Mid-drive motor unit with torque sensor
Installation hardware and tools
Optional display
Thumb throttle
Brake levers or brake sensors
Speed sensor
Cranks
This motor kit does not include a battery.
â Battery is optional and sold separately
â We recommend ordering it together with your kit.
â Choose from various capacities and mounting styles in our store.



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