Tongsheng TSDZ2B torque sensored DIY ebike mid motor
Tongsheng TSDZ2B torque sensored DIY ebike mid motor
Tongsheng TSDZ2B torque sensored DIY ebike mid motor
Regular price Sale price $ 699.00 CAD

Tongsheng TSDZ2B torque sensored DIY ebike mid motor

Regular price $ 879.00 CAD Sale price $ 699.00 CAD
Regular price Sale price

 

It's finally here: the 48V 500W(nominal) 700W(peak) Tongsheng torque sensored mid motor.

What makes this little motor incredible?

  • Supports up to 58.6V input voltage (hence the TSDZ2B version. Regular TSDZ2 only supports up to 45V peak)
  • Fits 95% of standard bike frames with 68-73mm bottom bracket
  • 30% lighter than a Bafang motor for almost the same power output
  • Built in torque and cadence sensor - this results in much smoother acceleration than any cadence sensored mid motor
  • Easy to install. Kit includes all installation hardware and tools
  • The motor has an extra support mount - resulting in a much more reliable install than a Bafang BBS motor
  • No throttle - this system is a pure pedelec; motivating you to pedal harder and go farther
  • 80Nm of torque is almost twice as much as a hub motor and can help you climb up any hill in your way

Battery choices:

52V 7Ah:  this is the smallest battery pack we have. It fits under the seat of your bike. More information on this battery is available HERE

48V 13.2Ah:  These are made with Samsung 33G cells in a 13 series, 4 parallel configuration. More information on this battery is available HERE
52V 14Ah: These batteries are suitable for 48V systems. These are made with Panasonic/Sanyo GA cells in a 14 series, 4 parallel configuration. The advantage of a 52V over a 48V system is that when the battery is almost empty, the voltage drop won't be as low as a 48V battery, so you will notice more usable range out of a 52V battery. That being said, the drawback of a 52V system is that a lot of 48V motor manufacturers may void warranty if used on a 52V system. More information on this battery is available HERE

 

52V 17Ah: These batteries are suitable for 48V systems. These are made with Panasonic/Sanyo GA cells in a 13 series, 5 parallel configuration. More information on this battery is available HERE

 

Installation:

How does it feel to ride the Tongsheng?

Third party review and unboxing; Installed on a Yuba Mundo:

Technical Specifications:

Motor

TSDZ2B mid-drive high speed brushless geared motor

Position

Mid Motor

Construction

Gear Motor

Rated Voltage

48V, 52V

Power

500W/700W

MaxåÊ Torque

80N.m

Controller

Integrated into motor

SENSOR

Torque sensor is integrated into motor

Power Assist Ratio

36%-300%

Bottom Bracket

68mm

Chain Wheel

42T

limited current

15A

Speed Limit

25km/h

Max speed without limited

37km/h

Motor weight

3.6kg

IP-Code

IP54

Certifications

CE Certification

Based on 16 reviews Write a review

Fat bike comparisons:

Juggernaut Classic HD Juggernaut Classic Juggernaut MX Max Juggernaut MX Ultra
Motor Bafang BBSHD 1000W  Bafang BBS02B 750W  Bafang Max 350W  Bafang Ultra 1000W
Max power from Motor 1500W 1200W 600W 1500W
Transmission Deore 10S  Altus 7S  Deore 9S Deore 9S
Battery 48V 11.6Ah 48V 11.6Ah 36V 17Ah 48V 11.6Ah 
48V 17Ah
Throttle Yes Yes No Yes
Pedal Assist (PAS) Yes Yes Yes Yes
Torque assist No No Yes Yes
Brakes Mechanical Disc Mechanical Disc Hydraulic Disc Mechanical Disc
Integrated front lights Yes Yes Yes Yes
Frame size M - 18" frame M - 18" frame M - 18" frame M - 18" frame
Aluminium Frame 6061 Yes Yes Yes Yes
Suspension Fork Yes Yes Optional Yes
Wheel Size 26" x 4"  26" x 4"  26" x 4"  26" x 4" 
Fenders Yes Yes Yes Yes
Weight 62 58 56 58

Other bikes:

Kutty MonteCapro Monte1000 Stunner StunnerLT
Motor Rear Hub drive 350W Bafang Max 350W  Bafang BBS02B 750W  Bafang BBS02 mid-motor 500W LAX geared rear-hub motor 500W
Max power from motor 500W 500W 1200W 750W 750W
Transmission Tourney 7S Deore 9S Altus 7S Shimano 3G Internally geared hub (IGH) Tourney 7S
Battery 36V 10Ah 36V 13Ah 48V 11.6Ah 36V 11.6Ah 36V 14Ah 48V 11.6Ah 48V 14Ah
Throttle Yes No Yes Yes Yes
Pedal Assist (PAS) Yes Yes Yes Yes Yes
Torque Sensor No Yes No No No
Brakes Mechanical Disc Hydraulic Disc Mechanical Disc Mechanical Disc Mechanical Disc
Integrated front lights Yes Yes Yes Yes Yes
Frame size S - 16" frame M - 18" frame M - 18" frame M - 18" frame M - 18" frame
Aluminium frame Yes Yes Yes Yes Yes
Suspension fork No Yes Yes No No
Wheel size 20" x 1.5" 27.5" x 2.3" 27.5" x 2.3" 26" x 2.3" 26" x 4"
Fenders Yes No No Yes Yes
Weight 38 53 54 50 60

 

Customer Reviews

3.6 Based on 15 Reviews
5 ★
47% 
7
4 ★
7% 
1
3 ★
13% 
2
2 ★
27% 
4
1 ★
6% 
1
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Filter Reviews:
JF
11/20/2018
Jamie F.

Tongsheng exceeds my expectations.

Just recently purchased tongsheng tsdz2b with 52 volt battery. Very happy with my decision, performs better than expected. Riding my bike has become effortless and I travel further and faster with a big smile on my face. The people from Biktrix were great at answering my many questions and did not disappoint. The installation was quite simple and only required the purchase of a couple of tools to disassemble the existing bottom bracket of a ccm commuter bike. For anyone who wants an e-bike at the fraction of the price of a purpose built e-bike, Biktrix is the place to call.

RA
09/19/2018
Roberta a.
United States

Nice

Very Nice. love it.

N
06/24/2018
nhoy

Not too bad

Does the trick, the only worrying thing is play in the bottom bracket bearings. Hope manufacturers will notice this and sort it out as demands increase. A bit of an excessive vibration from the spur gears, although can't notice it while riding. Performance was satisfactory during 75km trip, was able to climb trough four hills (with 15-20km/h speeds using standard low cost 7 speed Shimano cassette on 1th and 2th gears, 700c wheels, 101kg overall weight on turbo setting) which were 170 meters in hight and with 7% incline. Was left with more or less 50% of 10.5 Ah battery level and sore quadriceps. The assist wasn't used half the time, eco and tour setting was used during headwinds, small inclines and when feeling too tired after poor sleep. Power and turbo setting on hills. Average speed 17km/h only due to riding trough towns and many roundabouts, time spent: 3 hours and 30 minutes. Motor starting could be less jerky, I guess soft start PWM isn't used on all ebikes. Torque sensing works but does seem a bit too sensitive and isn't smooth enough.

JS
06/23/2018
Jesse S.

Update:

Since I cannot, or no how, to update my previous review, I will just write another one. I was told that the reason why my motor does not work is because they programmed it to work at 48 volts. I have a 52 volt battery. This is the first bullet point in the motor's description (just above this): Supports up to 58.6V input voltage (hence the TSDZ2B version. Regular TSDZ2 only supports up to 45V peak) My battery has been showing a voltage from 53 to 57 volts. I had no idea what was going on. The display worked but not the motor.I broke my bike trying to figure this out. The only solution they offered me was to "try" to re-program the firmware myself at a cost to me of $50. My summer (and $500) is ruined. BEWARE

Biktrix Electric Bikes

Hello Jesse, if you select 48V version of the motor, you get that. If you select 52V version of the motor, you get that. Looks like you ordered a 48V motor and your trying to use it with a 52V battery. They are not cross compatible. You could mail us your motor and we could update the firmware it to 52V if you want. Email us at ride@biktrix.com for RMA slip.

JS
06/22/2018
Jesse S.

I wish I could say

The motor looks beautiful. Putting it on the bike was easier than taking the old stuff off the bike. I give four stars on the installation. However, I have to give it only two stars because the motor has never worked. The display works and gives me my speed and everything else but the motor has never ran. I guess I'm getting a better work out because now I have the added weight of the non-working motor. Oh well. I don't think that I will ever be using it :(

Biktrix Electric Bikes

Hello Jesse, sorry to hear about your trouble. We noticed that you used your own battery. Was the battery the right voltage and amp rating? You can email us at support@biktrix.com and we can help you out!

JS
06/22/2018
Jesse S.
United States

It's a mystery wrapped in an enigma

The motor looks beautiful. Putting it on the bike was easier than taking the old stuff off the bike. I give four stars on the installation. However, I have to give it only two stars because the motor has never worked. The display works and gives me my speed and everything else but the motor has never ran. I guess I'm getting a better work out because now I have the added weight of the non-working motor. Oh well.

DS
06/12/2018
Darryl S.
Canada

inaccurate product delivery estimation

Guys, where are the batteries for my last order of 2 Tongsheng kitsIts been 3 weeks of "they're on the way..." The kits work very well and I am pleased with the performance.

BZ
06/12/2018
Brad Z.
United States

Still waiting....

I ordered a kit on April 27, and am still waiting on parts to install it. (it is now June 12) I understand that the batteries were on a 3 week backorder, and I upgraded my battery in that time. I also will give Biktrix a week leeway since I was gone for a week when the kit came in, but it's still frustrating to have 90% of the parts and not be able to ride. Biktrix has been very helpful with technical and ordering questions, but I can't overlook the lengthly time delay.

SL
04/05/2018
Simon L.
United States

Great Design

The motor and kit was relatively quick and easy to install. It results in a professional looking installation, small to the point of almost not being noticeable, quiet, simple to operate, as advertised. Product support was great. Even though it is relatively simple to assemble and connect there are no instructions provided and the you tube links did not provide details on the couple of details I had questions on. It would be nice if some of the cables were longer. I did have to extend the battery cable for my application. It is still too early to ***** battery life and overall durability. PS the motor in mounted on a Sun Easy Rider delta trike.