Convert ANY bike into an eBike
- £100 off
Easy to Assemble Simple Design
30 Miles Typical Single Charge
UK Stock and Warranty
FAST & FREE Delivery by FedEx
Buy Now
Image Product
Stuart, Hayling Island
Just like to say how pleased I am with your service and the quality of the kit supplied by you. It arrived the next day and it is fitted and has transformed the bike!
Available Now! New TongSheng Mid Mounted Torque Sensing Motor

TongSheng TSDZ2B 48V 500W/750W Torque Sensing Mid Drive Motor


The TongSheng mid drive motor is our new addition to the range. This new motor allows for an easy way to convert your bike to an ebike. This motor can do up to 45kmph! This 500W or 750W motor is packed with features. Compared to Bafang motors this is also a Torque sensing motor. A torque sensor measures how hard the rider is pedaling to determine how much electric power to push to the bike. The TongSheng Mid Motor gives you more power when you need it most. This innovative motor responds in real time to your pedaling.

The TongSheng TSDZ2B  is the newest model that comes with a two clutch design on the main gear. Main gear disengages from the chain during riding which makes it to ride your bicycle like a mechanical one. The older version (The TSDZ2) only had one clutch design.

Whether you're cruising around town or climbing a steep hill, this motor gives you the boost you need to get where you're going. And because it's a mid-motor design, it's perfect for those who want a more balanced ride. So if you're looking for an electric bike conversion kit that can keep up with your active lifestyle, the TongSheng Mid Motor is the perfect choice.

Key information:

  • 48V 500W or 750W mid drive motor with torque sensor
  • No thumb throttle – this provides assistance when you pedal
  • Suitable for most bikes
  • LCD Display
  • 42T chainwheel
  • Replacement cranks (both sides!)
  • All required cables
  • Fits 67 – 73mm BSA bottom bracket. Contact us if you need help identifying

How do I know if this mid drive motor fits my bike?

This mid drive motor is designed to fit bikes with a 68mm (2.68inch) or 73mm (2.87inch) wide bottom bracket. The inner diameter of the bracket should be not less than 33.5mm.  Most modern bikes sold in the UK meet this standard (but please check).

We also provide a set of spacers to help you adjust the motor to fit your bike.


Pick from three different battery options; 12.5A5, 15Ah and a monster battery of 17.5Ah. See the dimension chart below to find out if the battery will fit your bike. The battery cells are either Samsung or LG cells and come with a 35Ah fuse to protect the battery. Paired with a high quality BSM and a USB port for charging your phone on the go.



The TongSheng TSDZ2B motor kit comes with a 1 year warranty based on purchase date. Please return to us for repair or replacement.


View More
View Less
You have been registered for notification Continue Shopping
Email me when this product is available
Looking for a 250W?
Deatil Item Image
TongSheng TSDZ2B 36V 250W/350W
Here are just a few of our customer testimonials...
Cath, Stafford
Thank-you again for sorting my Hopper bike used it today for the commute to work. Ran very smoothly left one of my young work colleagues "eating my dust" as I flew past him on his pushbike
Keith, Shropshire
I thought that you like to know that I did my test ride today, 39miles, 2300 plus ft of ascent and I flew up the hills. It was as though my legs were suddenly 15 years younger. I'm really chuffed!
Andrew, W.Mids
Just a quick line to say I used my newly converted bike to work and back yesterday - what a joy ! The whole experience was absolutely brilliant; I never thought I would get to the top of the hills laughing out loud. I managed to iron out all of the hilly bits and the difference it took in time and effort was beyond all of my expectations!