BAFANG Mid Drive Kit - 36V 48V 52V 1000W 750W 500W 250W Ebike Conversion Kit, Upgraded HD BBS02B BBS01B Electric Bicycle Motor with Optional Battery & LCD Display, for 68mm 100mm 120mm Bottom Bracket
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Availability:
20 left in stock
Arrives
Jul 25 – Jul 26
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Features
- CAN-Bus Smart Motor with USB Programming Ready : BAFANG's upgraded mid-drive motor runs on CAN protocol for stable, interference-resistant communication between all electronic components. Built-in taillight connector and battery communication port for real-time power monitoring. USB programming cable customize speed limits, throttle response, and PAS levels to match your riding style. No more one-size-fits-all factory settings
- 3 Bottom Bracket Sizes Fit 95% of Bikes : Drop-in compatibility for 68-73mm, 85-105mm, and 105-125mm bottom brackets. Works with mountain bikes, city commuters, road hybrids, recumbent trikes, and fat bikes. Whether your frame is steel or aluminum, this kit bolts in without frame modification. Check your BB width, confirm inner diameter 33.5-36mm and thickness 12mm we have the right motor for it
- High Torque Mid-Drive Climb 35 Hills, Haul Cargo, Extend Range : Mid-drive efficiency puts power through your bike's existing gear system, delivering 2X the torque of equivalent hub motors. Conquer steep inclines, accelerate from stop with confidence, and extend battery range by 30-40% versus hub setups. Four power 250W , 500W, 750W, 1000W match your terrain and local regulations
- Complete Bolt-On Kit with Optional Upgrades : Includes motor, brake levers, chainwheel, thumb throttle, speed sensor, headlight, and bottom bracket removal tool. Choose your LCD display. Running a recumbent or trike? Add extension cables to reach distant components. No battery? No problem select from our 48V-52V range or use your own
- Install in 2-3 Hours with Basic Tools : Swap your bottom bracket, mount the motor, route cables, and connect the display. That's it. Converting your old bike costs fraction of a new e-bike and pays for itself in 3 months of saved gas/parking. Keep pedaling for exercise, or let the motor do the work. Your commute, your choic
Brand: BAFANG
Speed: 3.8 Feet Per Second
Voltage: 48 Volts
Horsepower: 750 Watts
Manufacturer: Bafang Electric (Suzhou) Co., Ltd.
Brand Name: BAFANG
Manufacturer: Bafang Electric (Suzhou) Co., Ltd.
Warranty Description: 30 Days return,365 days repair or replace,lifetime technican guideness
Part Number: LV-US DZ BAFANG BBS02B HD
Speed: 3.8 Feet Per Second
Voltage: 48 Volts
Horsepower: 750 Watts
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Jul 25 – Jul 26
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Top Amazon Reviews
It works, and my new e-bike is a heck of a lot of fun. But the instructions are garbage, and it takes a while to figure everything you need to know, both for the (one time) assembly and for operation. I had to go to YouTube and Google multiple times for various advice. Nonetheless, it’s a great product, so I keep rating at 5-stars. A few notes for the motivated: 1) for cable brakes, if you use their replacement handles, you’ll probably need to rethread the brake cable thru all the tubes and guides, so get at least one fresh brake cable because they’re tough to re-use once ends are scrunched up from previous use. 2) you’ll need to buy a bike chain breaker kit, the one from oumers (within Amazon) is fine. 3) The kit i got had a crank puller and a lower bracket removal tool, good. Unfortunately, my lower bracket was an old standard which required me to take it to a bike shop for help, but that’s no fault of this kit. 4) if you need to make new screw holes in the frame for mounting the battery rack, you should install rivnuts for a solid fit, either with a kit or have a bike shop do it. I learned about rivnuts by accident while watching a YouTube ‘short’. Bicycle frame wall thickness is too thin to make a strong tapped hole, it will easily strip out. 5) in the VD04 controller, and apparently at least some others, the ‘speed limit’ in settings acts frozen. Trick to change it is press “+” and “-“ at same time while in home screen, that will jump to speed limit page in editable mode. Thanks google AI mode. Added Nov 17, 2025: 6) bike shop guy mentioned that really, one should install an ‘offset chainring’ because otherwise, when back derailleur is in lowest or second lowest gear, the chain is going sideways from back sprocket to front, which will erode both chain and sprockets (chainring and back gears). The offset chainring essentially moves the plane of front chainring inwards, to better line up with plane of rear chainring (when it is around middle gear). He recommended 8 mm offset; couldn’t find that exactly but found one here on Amazon with 11 mm. Beware of too large offset, then the chainring might rub on bike frame, depending on exact details of the bike.
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Reviewed in the United States on November 13, 2025 by Bing H Yang
My order was processed and shipped quickly within the U.S. and arrived well packaged with everything just as I had ordered it. When I discovered that I would need a couple extra cables, and wanted another item to have on hand as a spare part, I contacted customer service. The response was surprisingly prompt and their customer service agent, Sherry, answered all my questions, provided me links with what I needed, and even made sure that the items I ordered received expedited order fulfillment. Over a month later I experienced an issue with my motor's controller, and I made sure to contact Sherry right away. Even though the order return window had closed, Sherry collaborated with their technician and promptly went to work troubleshooting the problem. She maintained consistent contact with me and the process was hassle free. When it was determined that I would need a replacement part, Sherry once again made sure that the order was fulfilled immediately. Service was beyond my expectations. I ordered the 500w with 48Ah battery to convert my recumbent trike. Installation of the motor was simple, and I appreciated the specialty tools needed to remove my cycle's original crankset being included with the kit. Connection of necessary cables was color coded simple and clean but getting the speed sensor perfectly lined up was a tad fiddley. Successful, just fiddley. Overall, I am very pleased with my purchase and experience.
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Reviewed in the United States on November 13, 2025 by J. Doyle
Make sure u get all the right measurements otherwise the customer service was good and the kit worked great
Reviewed in the United States on August 27, 2025 by Zaack anderson
While slightly inconvenient, the seller seems to take extra steps to make sure orders will actually meet customers' needs. For this latest order, this process led to them adding a bus cable to blend my old components with the kit's connections. This leads me to really appreciate their attention to detail. This seems to be especially important in working between Bafang's hub motors, legacy mid-drives, and the fitting 'protocols' on their new lines of mid-drives.
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Reviewed in the United States on August 16, 2025 by Oases 7