48V/52V1000W Bafang BBSHD 68mm/100mm/120mm Motor BBS03 Mid-Drive Kit M615 electric bike DIY conversion kit 10AH/14AH/17AH Samsung Cells Battery

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Product description


1, Our 1000W BBSHD mid drive motor has two versions with built-in both 48V and 52V controller (*Default version - 52V, whose label also reads 48V).

We default to ship the motor with built-in 52V controller, which needs to match rated 52V battery to work.

If the battery you use is rated 48V, you need to purchase 48V version motor, please leave us a note or message when placing the order, so that we program the item well before shipout.

2, The motor default with a female Anderson Connector to connect with battery, if you need a different type of connector (like Bullet Connector, or XT-60 Connector), including add-on optional (Hailong) battery we sell, then both need to change the connector by yourself. To make it convenient, we pack a cable whose one side with a matching male Anderson connector in box.

48 & 52V BBSHD Anderson Connector
48 & 52V BBSHD Anderson Connector Adapter Cable

Turn your bike into an e-bike - with Bafang motors

In addition to the normal commercial e-bikes, there are lots of conversion systems available. "Bafang" is one of the leading manufacturers in this area - both for e-components and complete systems.

Functional principle and advantages of Bafang BBS01/02/HD mid-drive motors 

What means mid-drive-motor? 

There are 3 different ways to mount the motor when converting your bike into an E-Bike:

  • Front-wheel (hub motor)
  • Rear-wheel (hub motor)
  • Bottom bracket - in the "middle" (mid-motor, mid-drive motor)

Compared to the hub motor, the mid-drive motor doesn´t transmit the power directly to the wheel, but to the bicycle chain. This means, your rear bicycle gears can also be used with a motor assist, which is not only an advantage when riding uphill. Further advantages are ideal weight distribution, low center of gravity, and a very natural riding experience. Furthermore, the front and rear wheels can still be changed without any problems.

Bafang BBS motor function is very simple: The electric motor powers the front chainring with an internal gear ratio of 22:1. An integrated clutch makes it possible, that the crank arms won´t be moved while the chainring rotates forward.

Exploded view of Bafang BBSHD Motor (BBS01 and BBS02 are the same design)

1 Motor housing 12 Screws
2 Stator 13 Triangle mounting plate
3 Rotor 14 Mounting screws
4 Controller 15 First (inner) lockring
5 Housing cover, PAS disc, clutch       16 Second (outer) lockring
6 Gasket stator side 17 Chainring
7 Gasket controller side 18 Chainring screws
8 Gasket drive side 19 Left crank (L)
9 Bolt for adjustment 20 Right crank (R)
10 Allen screws 21 Crank arm bolts
11 Bolt    

This is a complete mechanical conversion kit with all the necessary parts for you and your bike!

Order| Assemble | Ride

This conversion kit contains the following components:

  • 48V1000W motor with all necessary cables and fixing parts
  • Speed sensor
  • Original cranks from Bafang
  • Original 46T chainring from Bafang( many options)
  • Color display (Optional)
  • Original thumb throttle from Bafang
  • Bottle mount battery (many options)
  • Charger 2A(3A optional)

Gift: Mounting tool

And the accessories you may need:

  • Gear Sensor
  • Cable Brake Sensor
  • Chain Wheel Spider

Order From EUNORAU advantages:

  • US/EU/AU/UK Stock: ship the goods from the local warehouses directly.
  • After-sales site: US maintenance point

The Bafang Official Motor Partner



This set is suitable for most bikes. Make sure it fits your bike as well, please note the following points: 

1)Bottom Bracket Size:

Since this motor is available for different bottom bracket widths, please measure your bike and select afterward above. We recommend inverting the bike and measuring the frame width at the bottom bracket.

2) Bottom Bracket Diameter: 

The motor axle has a diameter of 33,5 mm and is installed instead of the bottom bracket. If your bottom bracket width is more than 75 mm, it´s possible that your bottom bracket has a bigger diameter (press-fit bearings) and you need an adapter. We recommend removing your bottom bracket, then you can easily measure the diameter. If it´s about 33/34 mm - no adapter is required. Please send a photo to info@eunorau-ebike.com if you are not sure - we will help you!

Bafang BBS advantages:

  • The motor is very silent
  • Pedaling resistance is very low, even without system operation
  • Bafang BBS motors are very low maintenance
  • Spare parts available and easy to change for yourself (many clips on YouTube for assistance)
  • Lots of system components are selectable (chainrings, display, battery, ...)

Technical comparison of our 5 different Bafang motors: 

Motor 250W/350W 500W/750W 1000W
Max. Ampere 18A 25A 30A
Max.Torque 80 Nm 90-100 Nm 160 Nm
Motor weight 8.2lb / 3.7 kg 8.2 lb / 3.7 kg 12.3 lb / 5.6 kg
Battery voltage (nominal) 36V 48V 48V / 52V
Control PAS-Sensor (Pedal sensor, cadence) PAS-Sensor (Pedal sensor, cadence) PAS-Sensor (Pedal sensor,   cadence)
n0(Rpm) 87/87 120/160 160
nT(Rpm) 78/75 113/125 140
Torque sensor No No No
Recuperation No No No
Backpedal brake possible No No No
Throttle possible Yes Yes Yes
Programmable Yes Yes Yes
Gear sensor/Brake sensor connections Yes Yes Yes

Technical comparison of our 3 different Battery: 

Normal Voltage: 48V 48V 48V
Rated Capacity: 10AH 14AH 17AH
Battery Cell: Yiklik 2900mah.52PCS Samsung 3500mah.56PCS Samsung 3500mah.70PCS
Array mode: 13S4P 13S4P 13S5P
Battery size:

13.7*3.5*4.4 inch / 367.2*90.1*111 mm

13.7*3.5*4.4 inch / 367.2*90.1*111 mm 13.7*3.5*4.4 inch / 367.2*90.1*111 mm
Battery Weight: 9.0-9.7 lb / 4.1-4.4 kg 9.0-9.7 lb / 4.1-4.4 kg 9.0-9.7 lb / 4.1-4.4 kg
Max Constant Discharge Current: 25A 30A 30A
Peak current: 60A 60A 60A
Charge voltage: 54.6V 54.6V 54.6V
Discharge cut off voltage: 36.4V 40.1V 40.1V
Way of Charge: CC/CV CC/CV CC/CV
Cycle Life: 1000 times 1000 times 1000 times
Charge Temperature: -59-149℉ / -15-65℃ -59-149℉ / -15-65℃ -59-149℉ / -15-65℃
Discharge Temperature: -59-149 ℉ / -15-65℃ -59-149℉ / -15-65℃ -59-149℉ / -15-65℃
Protection Function: Overcharge, Over-discharge, Over-current, Short circuit, Balance Overcharge, Over-discharge, Over-current, Short circuit, Balance Overcharge, Over-discharge, Over-current, Short circuit, Balance

From Bike to E-Bike - how to do?

The conversion is very easy and can be done by anyone with a little manual skill. Briefly described:

  • The bottom bracket has to be removed
  • Mounting Bafang motor by fixing with triangle and both lockrings
  • Battery fixing on the bottle holder
  • Connecting the cables

In this video have shown this in detail:


Q: Custom Duties:

A: Import duties, taxes, and charges are not included in the item price. 

Q: Color Difference :

A: The pictures showing at our store are taken based on the true products. Because of different monitors and brightness, there may exist normal tiny color difference, please do not leave bad feedback or return goods to us without contacting us.

Q: Delivery Time :

A: If products are still in transit, and your delivery time is going to expire, kindly contact us, and we will extend the delivery time for you. Or if products are lost in transit, kindly contact us we will make a full refund or resend the same products to you as soonest.

Q: Feedback:

A: Your satisfaction and positive feedback are very important to us. Please leave positive feedback and 5 stars if you are satisfied with our items and services.

If you have any problems with our items or services, please feel free to contact us before you leave negative feedback.

Q: Defective Products:

A: Please do not sign on the shipping bill if the product is defective, it is the shipping company's responsibility, please take a photo for us and we will make a refund you.

Q: Return Policy:  

A: We do our best to serve our customers. We will refund you if you return the items within 15 days of your receipt of the items and it is only the reason of product itself like a defect, damage, anything that is seller's fault, not the buyer's personal preference or failure to use. Besides, the items returned must be in their original conditions.

Q: How can I change something from the packaging list?

A: You can remark your requirement while order or send the message to us, then we'll change it for free to you. 

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We want you to be 100% satisfied with your purchase. Items can be returned or exchanged within 30 days of delivery.