Varstrom TSDZ2 Mid Drive Kit
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The Varstrom TS-DZ-2B is a Tong-Sheng TSDZ2-based mid-drive e-bike conversion kit available in power configurations ranging from 250W to 1000W across 36V and 48V systems, built around a genuine torque sensor for a natural, pedal-responsive riding feel. It offers a versatile upgrade path for cyclists looking to convert a standard bike into a capable e-bike without replacing the entire drivetrain. The optional LCD display and battery add-ons make it a relatively complete package, though buyers should verify compatibility with their bike's bottom bracket and chainring setup before purchasing.
Key Features & Specs
| Power Options | Available in 250W (36V), 500W, 750W, and 1000W (48V) configurations to suit different legal requirements and performance needs |
|---|---|
| Sensor Type | Integrated torque sensor delivers proportional power assist based on pedaling force, providing a smooth and natural riding experience |
| Motor Position | Mid-drive design mounts at the bottom bracket for improved weight distribution and efficient use of the bike's existing gearing |
| Display | Optional LCD display available as an add-on, showing speed, assist level, battery status, and trip data |
| Battery | Compatible battery pack available as an optional purchase; system supports 36V and 48V configurations depending on chosen power tier |
| Compatibility | Designed to fit a range of standard bicycle frames; bottom bracket shell width and type should be confirmed prior to installation |
| Brand Origin | Based on the Tong-Sheng TSDZ2 motor platform, a widely recognized and community-supported mid-drive system with open-source firmware options |
Best for: Cyclists and DIY e-bike enthusiasts who want a torque-sensing mid-drive conversion with flexible power options and a well-supported motor platform, particularly those comfortable with some technical installation work.