---
product_id: 662657673
title: "TSDZ-8 750W Mid-Drive Ebike Conversion Kit with Optional Battery - Upgrade Your Ride with Powerful Electric Bike Kit (68mm/73mm BB Length, Universal Fit)"
brand: "tongsheng"
price: "€ 1132.75"
currency: EUR
in_stock: true
reviews_count: 5
category: "Tong Sheng"
url: https://www.desertcart.de/products/662657673-tsdz-8-750w-mid-drive-ebike-conversion-kit-with-optional
store_origin: DE
region: Germany
---

# 750W peak power Real-time dashboard data Universal 68/73mm BB fit TSDZ-8 750W Mid-Drive Ebike Conversion Kit with Optional Battery - Upgrade Your Ride with Powerful Electric Bike Kit (68mm/73mm BB Length, Universal Fit)

**Brand:** tongsheng
**Price:** € 1132.75
**Availability:** ✅ In Stock

## Summary

> ⚡ Transform your ride, conquer every mile with power and precision!

## Quick Answers

- **What is this?** TSDZ-8 750W Mid-Drive Ebike Conversion Kit with Optional Battery - Upgrade Your Ride with Powerful Electric Bike Kit (68mm/73mm BB Length, Universal Fit) by tongsheng
- **How much does it cost?** € 1132.75 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/662657673-tsdz-8-750w-mid-drive-ebike-conversion-kit-with-optional)

## Best For

- tongsheng enthusiasts

## Why This Product

- Trusted tongsheng brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Universal Fit:** Seamlessly upgrades most bikes with included BB adapters for a perfect 68/73mm bottom bracket fit.
- • **Torque-Packed Powerhouse:** Delivers a commanding 140 N.m torque with integrated torque sensor for smooth, responsive rides on any terrain.
- • **Smart Real-Time Monitoring:** Stay in control with a comprehensive dashboard showing speed, battery, mileage, and error alerts at a glance.
- • **Reliable Support & Warranty:** Ride worry-free with a 2-year motor warranty and dedicated technical support ready to keep you moving.
- • **Cost-Effective Mid-Drive Upgrade:** Save $1000-$2000 compared to competitors while customizing battery capacity to match your unique ride style.

## Overview

The TSDZ8 750W Mid-Drive Ebike Conversion Kit is a high-torque, universally compatible electric bike upgrade designed for serious riders seeking powerful assist and real-time ride data. Featuring a 140 N.m torque sensor, easy installation for 68/73mm bottom brackets, and customizable battery options, it offers a cost-effective alternative to premium e-bike systems with reliable 2-year warranty and expert support.

## Description

This mid-drive motor is a new product released by the same companyDifferent from the BAFANG-BBS series in that it is based on the TSDZ2 platform and retains the design of the torque sensor. Under the same 750W power output, it achieves powerful power output on one hand, and strives to restore the true riding sensation on the other hand.Product Size: 8*6.6*4.96in / 20.4*16.8*12.6cmRated Power:750WRated Voltage: 48VMax Torque: 140N.mReduction Ratio: 38Pedal Sensor: Integrated Torque sensorWeight: 10.6lb / 4.8KGInstallation: According to actual measurement data

Review: Great value and quality. - Why did you pick this product vs others?: This motor is amazing, excellent amount of torque and runs very quiet. Super easy install as well. Highly recommend this for your upcoming electric bike conversion!
Review: Good, but creaking bottom bracket, superfluous parts, too short battery cable, and missing software - The torque sensing is great to have, as someone whose legs contribute power; that feature sets this product apart from the Bafang BBS02. The benefit of this motor over other 750w torque-sensing motors, like the new CYC Photon 2, is that this motor is significantly cheaper. As for the cons: the bottom bracket sometimes makes a creaking/clicking noise when pedaling with the motor engaged; the brake sensors are completely unnecessary (just don't engage throttle/pedal while braking... duh); and the computer screen lacks nuanced features, namely setting brightness below 30%. Another issue is that the motor's Anderson cable, which connects to the battery, would benefit from being a couple inches longer. Lastly, although I understand that a more sophisticated battery management system would increase price, the current system makes it difficult to predict range; the displayed battery percentage will stay at 100% for a long time, then quickly lose charge below 100%. This makes it difficult to estimate what percent to charge the battery to for a given ride. As an example of how bad the battery management system is, on a 35-mile commute to work on pedal assist level 3, starting at fully charged, I got all the way to my destination with 55-65% charge remaining. On the same commute and power assist level, but starting at 85-90% charge, I completely ran out of charge exactly when I arrived at my destination. This data was collected using the 48V 20Ah Hailong battery that came with my purchase. In conclusion, even though the cons I listed would suggest I don't like this motor, I do overall. For about half the price of the CYC Photon 2, it's a good deal.

## Features

- Easy to install: Compatible with most standard bicycles BB length 2.78in/2.87in (68mm/73mm) outer diameter and 1.34in/1.42in (34mm/36mm) inner diameter. We include BB adapter rings and screw washers in the packaging for a secure fit, suitable for Road, Mountain, Folding, Hybrid, Commuter, and Cyclocross bikes.
- Powerful and Reliable: 22ah+ controller current, 140 N.m torque, paired with torque sensor, effortlessly controlling various terrain and challenging various riding conditions, for example, climbing, long-distance, leisure, and commuting rides, etc.
- Real-time Riding: With the comprehensive dashboard at your fingertips, you can enjoy a motorbike-like experience, effortlessly monitoring vital information in real-time, including battery level, speed, mileage, drive level mode selection, and system error alerts.
- Mid-Drive Solution: Compared to other e-bikes with similar specs from other brands, our mid-drive solution can save you 1000-2000. Plus, you can choose from various DIY schemes to pair the perfect battery capacity with your riding style, ensuring a tailored fit for your needs.
- Local Support: In addition to the 2-year warranty on the motor, we also provide technical support to ensure you're always riding smoothly. If you have any questions or concerns, please don't hesitate to reach out to us at any time.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D7PKXRXV |
| Best Sellers Rank | #333,462 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #780 in Adult Electric Bicycles |
| Brand Name | TongSheng |
| Color | Black |
| Customer Reviews | 4.4 4.4 out of 5 stars (22) |
| Date First Available | June 21, 2024 |
| Included Components | Charger, E Bike Accessory Kit, Electric Bike |
| Item Dimensions LxWxH | 7.9 x 6.6 x 4.9 inches |
| Item Package Dimensions L x W x H | 15.4 x 10.4 x 9.65 inches |
| Manufacturer | TONGSHENG |
| Material | Aluminum |
| Model Name | tongsheng mid-drive kit with battery |
| Package Weight | 13.8 Pounds |
| Part Number | 13TSDZ8B02NTSE |
| Style | B02N + 13AH Battery |
| Suggested Users | Unisex-Adult |

## Product Details

- **Brand:** TongSheng
- **Manufacturer:** TONGSHENG
- **Material:** Aluminum
- **Model Name:** tongsheng mid-drive kit with battery
- **Wattage:** 750 watts

## Images

![TSDZ-8 750W Mid-Drive Ebike Conversion Kit with Optional Battery - Upgrade Your Ride with Powerful Electric Bike Kit (68mm/73mm BB Length, Universal Fit) - Image 1](https://m.media-amazon.com/images/I/61BYFLhfVHL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great value and quality.
*by J***E on July 14, 2025*

Why did you pick this product vs others?: This motor is amazing, excellent amount of torque and runs very quiet. Super easy install as well. Highly recommend this for your upcoming electric bike conversion!

### ⭐⭐⭐⭐ Good, but creaking bottom bracket, superfluous parts, too short battery cable, and missing software
*by B***S on October 16, 2025*

The torque sensing is great to have, as someone whose legs contribute power; that feature sets this product apart from the Bafang BBS02. The benefit of this motor over other 750w torque-sensing motors, like the new CYC Photon 2, is that this motor is significantly cheaper. As for the cons: the bottom bracket sometimes makes a creaking/clicking noise when pedaling with the motor engaged; the brake sensors are completely unnecessary (just don't engage throttle/pedal while braking... duh); and the computer screen lacks nuanced features, namely setting brightness below 30%. Another issue is that the motor's Anderson cable, which connects to the battery, would benefit from being a couple inches longer. Lastly, although I understand that a more sophisticated battery management system would increase price, the current system makes it difficult to predict range; the displayed battery percentage will stay at 100% for a long time, then quickly lose charge below 100%. This makes it difficult to estimate what percent to charge the battery to for a given ride. As an example of how bad the battery management system is, on a 35-mile commute to work on pedal assist level 3, starting at fully charged, I got all the way to my destination with 55-65% charge remaining. On the same commute and power assist level, but starting at 85-90% charge, I completely ran out of charge exactly when I arrived at my destination. This data was collected using the 48V 20Ah Hailong battery that came with my purchase. In conclusion, even though the cons I listed would suggest I don't like this motor, I do overall. For about half the price of the CYC Photon 2, it's a good deal.

### ⭐⭐⭐⭐⭐ Extremally smooth operation, way more power than needed for the off-street riding
*by P***O on July 27, 2025*

I really like it. Installation was very easy and fast, and it is very smooth in operation. It adds only as much power as needed based on how hard I'm pedaling. It is so gentle with supplying the power that I can't tell when it is engaging. I ride this bike the same way, I would ride it without the motor. I pedal all the time and never use the throttle. On my longest ride, I rode 61 miles with power set to 1 (to conserve energy), with average speed of 17.5 mph, max around 22 (while pedalling, no throttle). The battery was empty on the last mile. The bike trail was almost flat. The motor with the battery added 22 lbs to the weight of my bike. Total weight is now 48 lbs, and I weight 240 lbs. I'd like to add that, I like working on bikes and I had all necessary tools except one. I had to buy a rivet nut tool ($27 including rivet nuts) and a 7mm drill bit to install additional bottle nuts in the frame, because the factory holes didn't match the holes in the battery mount. It was very easy job and I was doing this for the first time. I didn't install the brake sensors, and I don't see any advantage of having them installed. I even don't see the need for the speed sensor, but it's nice to see how fast I'm going without using additional bike computer or phone apps. There is a connector cable in the motor for the gear sensor. This sensor wasn't part of the kit but it could be very welcome. It's very inexpensive, so I considered adding it to the bike, to protect the drivetrain during gear shifting but now, after a few rides, I don't need it anymore. I quickly learned to stop pedaling for a moment while shifting and I don't experience any sudden jerks by the motor anymore. For those who don't know this, mid-drive motors pull the chain the same way biker's legs do, but the motor is much stronger and quicker, and if shifting is done under load (while pedaling), it creates very sharp jerks that can break the chain in some cases. So, the tip for others is to install the gear sensor or simply don't pedal for a moment while shifting. One more thing. This kit includes the throttle that is totally optional. Riding by using it instead of pedals is a lot of fun, and it powers the bike much better than legs giving a feeling similar to riding a motorcycle. On a test ride, on the street, I have reached 35 mph with the throttle. It was way too fast for my taste. Using the throttle discharges the battery very quickly, and it defeats the purpose of physical activity of riding a bicycle. At least for me. Customer service was extremally supportive. I installed the speed sensor incorrectly in the beginning, and it was confusing the motor's computer. They contacted me immediately and explained how it should be done. The sensor has to be perfectly perpendicular to the magnet, but mine was at a steep angle, because there was not enough space between the frame and the spokes. I solved it by removing the zip tie mount from the sensor, and I glued it to the frame with silicon. This kit is not a plug and play addition to the bike. Every bike has a different frame, and sometimes you have to be creative during the installation. My bike is 2005 Marin Larkspur. The motor noise is practically non-existent. I don't ride bikes in traffic anymore, so I compare this bike to a non-powered bike. If I was riding it on streets, I would pay more attention to top speeds and the battery performance on higher power levels. At this time, I don't know those things.

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-02-28*