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Quick Details

  • Wattage: > 500w
  • Voltage: 36V
  • Power Supply: Lithium Battery
  • Wheel Size: 27.5"
  • Motor: Brushless
  • Certification: CE
  • Frame Material: Aluminum Alloy
  • Foldable: No
  • Max Speed: <30km/h
  • Range per Power: 31 - 60 km
  • Place of Origin: Zhejiang, China (Mainland)
  • Brand Name: MARS
  • Model Number: TDA67Z
  • Product name: Bafang rear motor 21 speed electric used mountain bikes

Packaging & Delivery

Packaging Details carton box
Delivery Time Shipped in 45 days after payment
Product Description



Bafang rear motor 21 speed electric used mountain bikes





Electric system
Motor250W Brushless(8FUN)
BatteryLithium 24v/36v 10ah 
Charger220 / 110V, 50 - 60Hz
PAS1:1 intelligent pedal assistant system
ThrottleTwist intelligent speed throttle
Controller  Intelligent controller(lishui)
Main Components
Frame 6061 Aluminum alloy
Tyres27×1.95 whole wheel (Kenda/CST)
RimAl alloy double wall , CNC side wall
Front forkZOOM suspension front fork
F/R brakeD-brake,TEKTRO
Speed gears:SHIMANO 21  speed
SpokesStainless spokes
Mudguard fender(bikeman)
HandlebarAl alloy  
StemAl alloy  
Brake leverAl alloy with power off switch.
ChainRust resistant chain KMC
SaddleMTB saddle
Seat postAl alloy with suspension
lightsF/R reflector
DisplayLED-display (APT 350U)
Max speed25km/h
Driving distance45-70KM
Charging time and life6-8 hours,>500 times
Max loading125kg
Product size1835×625×1045mm
Packing size1450×270×770mm

Productive process


Packaging & Shipping


Company Information





 36 months for the Frame.

24 months for the electric motor.

12 months for the Li-ion battery.

12 months for the controller.

12 months for the charger .



 1-1 Why choose us ?

        A: Because we are factory ! We not only to ensure product quality, but also more favorable price .

 2-2 How about the delivery time ? Will delay or not ?

       A:we hate supplier always lie for delivery time , it will let the client lose the best time to market . we never do that .

 3-3How about your produce ablity?

       A:we have 10000square meter  workshop , so we never worry big order.

 4-4 How can you sure your products quality is good ?

      A:our team members have 10 years electric bicycle work experience, we are professional electric bike manufacturer .

 5-5 If the product have problem ? How to solve it ?

     A:We will solve it in the fisrt time and  responsible to it.


Contact person


Sales Manager:Lisa 

Office:+86 579 8713 9013
Tel: +86  13758972757
whatsapp:86 13758972757
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Trade Assurance
China (Mainland) | Manufacturer
Transaction Level:
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1 Transactions 5,000+
The supplier’s transactions conducted via Alibaba.com in the past 6 months.
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Supplier's Trade Assurance Limit: US $37,000
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