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Lvbu BZ Series E-bike Kit

Rear rack battery, large capacity with long range

Assist range from 180km / Cable thumb throttle/ Induction cut off system / Built in Gyroscope / Road Slope degrees detection / All Terrain Application / Anti-theft tracking

  • (optional)
  • (optional)
  • 15 minutes

    Quick installation

  • 16-29 inch

    Multiple wheel sizes

  • 5 modes

    Smart assistance modes

  • 32 km/h

    Maximum speed

  • 250 W-500W

    High-speed brushless motor

  • 2 drive ways

    Throttle / Pedal assist

Product Specification

    model
    BZ50D / BZ50V /BZ60D/ BZ60V
    Battery capacity
    36V14.5Ah / 36V17.4Ah
    Cell quantity
    50 cells/ 60 cells
    Charging time
    7.5 hours / 9 hours
    Battery type
    18650 power lithium ion battery
    Charger
    AC110V-AC220V, DC42V 2A
    Assist range
    150km / 180km

    *The assist range is under conditions: 60kg weight rider, ouside temperature 25℃,no wind, 50% assist level under manual mode, tires with enough air pressure, riding on flat level road.

    Maximum speed
    32km/h
    Rim size
    16" / 20" / 24" / 26" / 27.5" / 29" / 700C (28")
    Rated power
    250W
    Motor structure
    Gear drive
    Motor efficiency
    >80%
    Max torque
    30N.m
    Related size
    Net weight (including rim&tire)
    9KG / 9.5KG
    Package Size
    Carton 1: 70*70*20cm (6.5kg) Carton 2: 65x23x23cm (8kg)

Rear rack battery, longer range, enjoy you biking tour.

INSTALLATION REQUIREMENTS

Fits every size bikes

BZ series kit fits all standard bikes. It has mulptiple wheel sizes from 16" to 29" and 700C

High quality 18650 lithium battery

EV lithium-ion battery cell with internal resistance as low as 18mΩ, capacity of 2900mA, 3C high-rate discharge. The 18650 power lithium battery offers consistency, high energy density, and faster charge/discharge performance. Tried and tested over time, 80% capacity remains after 1000 cycles, making this high-quality lithium battery’s lifetime more than 5 years.

Using high-performance and high-safety BMS battery protection system

  • Over-discharge protection
  • Overcurrent protection
  • Temperature protection
  • Overcharge protection
  • Short circuit protection
  • Battery balance

250W high speed brushless permanent magnet motor

Small size, light weight, high efficiency, stable operation, long lifetime
Planetary gear and clutch.:It's easy to ride even when the battery is dead.

250W
Rated power
500W
Maximum power

Power :  250W
Voltage :  36V
Structure :  Gear Drive
Efficiency :  >80%
Maximum torque :  30N.m

Micro Power system

9 years of research and development has gone into creating a versatile and cost-effective product for cyclists. The micropower system offers intelligent assistance with induction brakes that have a response time of 10ms. The system can sense the speed, acceleration and road slope, it will help you automatically when you pedal.


Uphill
Automatically increase power

Downhill
Automatically cut off power

ARM Cortex-M3 main chip

With 6-axis gyroscope motion processing chip
Configure Bluetooth Low Energy 4.0
10 pieces of high-sensitivity speed measuring magnets for precise speed measurement

5 smart assist modes

We have spent 9 years on developing and optimizing the assist system. The assist system is based on the speed, acceleration, the road slope, and also the assist level that you set in the APP or on the Bluetooth display, calculating out the power you need. It will assist you automatically when you pedal. And we will keep on optimizing the system and publishing it from time to time. You will be able to update the system by the APP.

  • Leisure mode
  • Commute mode
  • Exercise mode
  • Manual mode
  • Climbing mode

Dedicated APP provides you wonderful cycling experience

You can use the APP to control the wheels, upgrade the firmware, set the assist mode, set the assist level, calibrate the gyroscope angle, and detect the fault. And also you can check the speed, temperature, power, mileage, etc.

Speed up to 32km/h
Speed limitation is settable in the APP.

The default maximum speed is 25km/h, you can set the speed limitation up to 32km/h in the APP.


Anti-theft Tracking Function: Lost bike tracking. You can report lost when your bike is stolen.

After you report lost, once the thief tried to connect the wheel with the APP, the system will locate the mobile phone, disable the motor immediately and upload the information to the server.

Overspeed alarm makes it safer to ride

You can set the overspeed alarm value in the APP. It will alram when the speed is over the value you set.


IP65 waterproof grade

IP65 waterproof grade makes you ride freely in the rain.

Packing list

Welcome to send us your enquiry, we will contact you as soon as possible
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FAQ

Can I buy a spare battery?

Yes. We find the vast majority of people don’t need a spare, but if you want to go on very long bike rides you can double your range by charging a spare battery and taking it with you. You can purchase a spare battery here.

Do I have to use the thumb controller?

No. The thumb controller is your choice. We find that some of our customers prefer not to use the thumb controller and that’s fine, the bike will automatically work on the pedal assist mode.

How does the pedal assist work?

The kit has an “intelligent assist control module” which works in conjunction with a gyroscope calculating the power you need.  It will assist you automatically when you are pedalling.  The motor will not work until the speed reaches 5km/h. The system will increase the power when you go uphill and will shut down the motor when you are going downhill.  When you brake, the system can detect the decrease of the speed, and will stop the motor.

If you push the thumb throttle the bike will be fully driven by electric power, but when you release it the pedal assist system will kick in again automatically.

How long does the battery take to charge?

Approximately 7.5 hours/9 hours at the mains.  The battery comes with a charger

Is the import taxes included in the price? Do I need to pay taxes when I receive the ebike kit?

If the delivery address are in the countries below then you don't need to pay any taxes or VAT:

United Kingdom, United States, Canada, Australia, Russia, France, Germany, Italy, Spain, Sweden, Denmark, Ireland, Belgium, Netherlands, Czech, Republic, Austria, Portugal, Slovakia, Slovenia, Hungary, Bulgaria, Estonia, Greece, Poland, Lithuania, Finland, Latvia, Croatia, Ukraine.

How much does the kit weigh?

The entire kit weights 9kg/9.5kg.

How long is the lifetime of the battery?

Lvbu ebike kits use EV 18650 lithium-ion battery cells with class A quality. Working with our own BMS system, the lifetime of the battery is very high. 80% capacity remains after 1,000 cycles. So normally it can last 5 years.

*Note: The definition of one cycle is that charge the battery from 0 to 100% and discharge it fully. For example, if you charge the battery from the 0 to 50% and discharge it to 0, that is 0.5 cycle.

How to connect Lvbu kit with the APP?

Open the APP and allow all the permissions that the APP asks for. And tap the magnified glass icon on the right top of the APP to search for the Bluetooth address. Select the right address of your kit in the list to connect.
 
*Note: Please connect the kit in the APP, don’t connect it in the operation system of the phone. You don’t need to input any pin to connect. And please make sure all permissions are allowed and the kit is not connected to other devices. The kit can just connect to only one device at the same time.

How does Lvbu wheel recognize uphill?

Lvbu wheel has a built-in six-axis gyroscope, which can sense the slope of the road such as uphill and downhill. But if you want to detect the slope of the road correctly, you must calibrate the gyroscope angle on the level ground first. The way how gyroscope works is as below: 

  • The purpose of calibrating the gyroscope angle is to give the gyroscope a horizontal reference, telling the gyroscope that the current angle is level, so that the gyroscope can detect the slope. 
  • If the gyroscope is calibrated on a downhill road, the gyroscope will regard the downhill road with a certain angle as a horizontal road, but when the bike is on a level road, the gyroscope will sense it as an uphill, in that case the motor will always provide assistance; 
  • If the gyroscope is calibrated on an uphill road, the gyroscope will treat this uphill road as a horizontal road. And when the bike is on a level road, the system will shut down the motor because the gyroscope sense the level road as a downhill road by mistake.

    Therefore, you must calibrate the gyroscope on a level ground, otherwise there will be problem with the assist system.
How to connect LVBU ebike kit with Bluetooth display?

BTC02 Display Connect Method:

  • Please turn off or disconnect the Bluetooth connection on your phone before the Bluetooth display connects to the LVBU Wheel. The wheel cannot connect to more than one device at the same time; 
  • Press the power button of the Bluetooth display to turn it on. Then press the power button three times continuously. The display will search for the Bluetooth address of the lvbu ebike kits nearby; 
  • After the display finishes the search, press the up and down keys to select the right address of your kit and press the power button to connect.

DW03 Display Connect Method:

  • Open the APP and connect it with the Lvbu ebike kit
  • Press the power button of the Bluetooth display to turn it on.
  • Tap the "device" icon at the bottom right in the front page of the APP-->Tap "Add Device"--> Select the display in the list to connect.
What is lvbu kit warranty policy?

For battery, motor and controller, we provide one year warranty.

Do I need a mobile phone to operate my bike?

No, using your mobile phone is your choice. If you want, you can download the Wepower app, where you can set the pedal assist mode, see the speed, temperature, battery level and mileage covered. But this is entirely optional, and the bike will function perfectly without it.

My bike has disc brakes – will the kit still work?

Yes, the kit fits both V brakes (sometimes called rim brakes) and disc brakes.

Does the kit accommodate hydraulic brakes?

Yes it does. The kit will automatically sense when the brakes are applied and cuts the power to the motor.

Will Lvbu kit fit my bike ?

LVBU kit will fit most bikes except thru axle. 

How does Lvbu kit system work ?
  • Lvbu assist system is an intelligent assist system which can calculate out and provide the proper power based on the speed, acceleration, the slope of the road, and the assist level set in the APP or display. It will provide proper power automatically when you pedal. The motor will not work until the speed reaches 5 km/h. 
  • It will increase the power when it senses the acceleration is positive and decrease the power when it is minus. The system will also increase the power when going uphill and shut down the motor when going downhill. And the kit can also be controlled by the optional wireless thumb throttle. When you push the throttle, the bike will be fully driven by electric power, but when you release it the assist system will kick in again automatically. The introduction of the 5 assist modes is as following:
     * Manual mode: The most often used mode. The users can set a proper assist grade from 0 to 99 for themselves. 0 stands for no assist while 99 stands for the strongest assist. Under the manual mode the user can use the optional wireless display to set the assist grade instead of using smart phone. After setting the assist grade, the wheel will assist automatically.
     * Commute mode: Under this mode, the wheel will have relatively strong assist power all the time. The output curve of the assist grade is as shown above. It is similar to an assist grade of 60% in the manual mode.
     * Leisure mode: The assist power output is as the curve above. It is a curve similar to a damping ratio. Half an hour is a cycle. At the end of the cycle, the assist will become stronger.
     * Exercise mode: This mode has a small assist output. One cycle is also half an hour. After about 10 minutes, the assist power output will become stronger in the rest of the cycle.
     * Climbing mode: The wheel provides a certain assist grade only if the road is uphill that above a certain slope angle. The assist grade and the slope angle can be set in the APP. For example, when you set 2 degrees and an 80 assist grade, the wheel can give you an 80 assist grade when you are on the road with slope angle above 2 degrees.

     Note: Lvbu's intelligent assist system can be upgraded by the APP. We will keep optimizing the algorithm and publishing the new firmware.
Is Lvbu kit compatible with V brake?

Yes, Lvbu kit is compatible with rim brakes and disc brakes.

And a free new disc can be provided if you need.

Is it safe to use the front wheel drive?

Yes, it’s safe to use the front wheel drive. 

The power of the front wheel motors those lvbu ebike kit use are between 250w to 350w, so there is no safety problem. Actually, there are some advantages to using front motor drive: 

 It is more efficient to pull the bike compared to push the bike.

 The front motor will balance the weight of the front wheel with the rear wheel to make it stabler

 It is much easier to install the front wheel than the back wheel.

What are the functions of the APP?

The APP has two main kinds of functions as following: 

  • Set the parameters:
    ①Search and bind the Lvbu ebike kit: You need to search and bind the kit with the APP when you use it first time.
    ②Calibrate the gyroscope angle: The gyroscope angle must be calibrated after the first time you attach or reattach the kit to your bike.
    ③Set the assist mode or adjust the assist level.
    ④Set over-speed alarm.
    ⑤Set the maximum assist speed (speed limit).
    ⑥Lost report.
    ⑦Firmware upgrade.
    ⑧Restore factory settings.
    ⑨Set the wheel weight, load, wheel size, etc. ...
     After adjusting and setting the parameters, the system will automatically save values instantly.
  • Show cycling data:
    ①Riding speed
    ②Riding mileage: total mileage, current mileage, uphill mileage, etc.
    ③Kit model
    ④Bluetooth address
    ⑤APP version
    ⑥User instructions ...
    We are keeping optimizing the APP all the time, the new version of the firmware and the APP will be released from time to time, you can update it anywhere with the network of your mobile phone.

Do I have to connect to the APP while riding?

No, you don’t have to connect the kit with the APP when you are riding. The assist system is written in the controller, not in the APP. But before the first time you use it, you must calibrate the gyro angle for the bike.
You can set the assist grade in the APP and put your phone in your pocket. The kit will provide proper assist power for you automatically.

What is the range of the battery?

The battery is a high quality power lithium-ion battery, 36V, 15/18AH. The range is approximately150/180 km+. But that does depend on many various factors, including terrain, slope, your weight and how much you pedal and your level of assist.

Do you have a local dealer or oversea warehouse?

Yes, we have oversea warehouse in Europe.

And for some countries, we do have local dealers. 

82 REVIEWS - BZ Series Ebike Conversion Kit
Christian
Canada , 1/1/2024
Fantastic kit!!!
Model: BZ50D 350W Rear, BZ50D Rear wheel ebike kit
Size: 27.5", 27.5 inch rim with tyre
Color: Black, Black
Noah
Australia , 12/20/2023
Very clever design and works great! It gives me the confidence to bike more often to run local errands instead of jumping in the car. A few times I lost power, but it was just the front wheel connection that loosened up, so I taped the connection to prevent them disconnection.
Model: BZ60D 350W Rear, BZ60D Rear wheel ebike kit
Size: 16", 16 inch rim with tyre
Color: Black, Black
Andrew P.
France , 8/29/2023
Straightforward kit to install,Excellent product
Model: BZ60D 350W Front, BZ60D Front wheel ebike kit
Size: 16", 16 inch rim with tyre
Color: Black, Black
michael taylor
United States of America , 8/25/2023
Perfect for my needs as a 70-year-old.
Model: BZ50D 250W Front, BZ50D Front wheel ebike kit
Size: 29", 29 inch rim with tyre
Color: Black, Black
Charles A
Spain , 8/25/2023
There are hills in Pennsylvania for sure. Before kit I have 20 inch single speed bike that was terrible on hills. Had to walk them up. Also there are stretches that while they look flat aren’t. Again had to walk bicycle. This E-bike kit is a game changer. Don’t need to walk now. I can do longer runs now. Also I can use bike on breezy days whereas before I wouldn’t. Price was in my ballpark.
Model: BZ60D 250W Rear, BZ60D Rear wheel ebike kit
Size: 20", 20 inch rim with tyre
Color: Black, Black
Eric Michel
Denmark , 8/25/2023
It went together really well. It seems like it is well made. Charges quickly and the charge lasts a long time.
Model: BZ60D 250W Rear, BZ60D Rear wheel ebike kit
Size: 16", 16 inch rim with tyre
Color: Black, Black
Gary F.
Spain , 8/18/2023
As expected
Model: BZ60D 350W Front, BZ60D Front wheel ebike kit
Size: 26", 26 inch rim with tyre
Color: Black, Black
John C.
Italy , 8/17/2023
By far the simplest components and easiest assembly of any front wheel e-hub kit I have found. Bought 1 a few years ago, and came back to buy another for a different bike.
Model: BZ60D 250W Front, BZ60D Front wheel ebike kit
Size: 20", 20 inch rim with tyre
Color: Black, Black
Allen Pyle
Chile , 8/15/2023
Easy to install and great to use
Model: BZ60D 350W Rear, BZ60D Rear wheel ebike kit
Size: 26", 26 inch rim with tyre
Color: Black, Black
Hector S.
Spain , 8/11/2023
Was a good price
Model: BZ60D 350W Rear, BZ60D Rear wheel ebike kit
Size: 16", 16 inch rim with tyre
Color: Black, Black
Charles Franklin
Malaysia , 8/9/2023
The kit arrived and was simple to install! The directions were written perfectly for anyone to understand.
Model: BZ60D 350W Rear, BZ60D Rear wheel ebike kit
Size: 16", 16 inch rim with tyre
Color: Black, Black
Edward D.
France , 8/7/2023
Installation was straightforward. I love my motorized ride!
Model: BZ60D 350W Rear, BZ60D Rear wheel ebike kit
Size: 16", 16 inch rim with tyre
Color: Black, Black
Jack Thomas
United States of America , 5/22/2023
The installation and setup process for this electric bike kit was a breeze, thanks to the helpful instructional videos and tips provided. It has been a true game-changer for my daily commute, especially when I need to carry heavy loads on the rack or my back when traveling between job sites. With this electric bike kit, I can arrive at my destination with minimal sweat and effort, making my workday much more bearable. Overall, I highly recommend this product to anyone looking to upgrade their bike and make their daily commute more efficient and comfortable.
Model: BZ50D 350W Front, BZ50D Front wheel ebike kit
Size: 26", 26 inch rim with tyre
Color: Black, Black
Leo
United States of America , 3/11/2023
All the products I ordered arrived as expected and in accordance with the specifications provided. I have successfully installed the kit on my bike and it is running perfectly. I want to express my gratitude for such a nice product. With the 36V 14.5Ah battery, I am able to achieve an impressive range of 150km with the help of pedal assist. Overall, I am very satisfied with this purchase.
Model: BZ50D 350W Rear, BZ50D Rear wheel ebike kit
Size: 24", 24 inch rim with tyre
Color: Black, Black
George
Canada , 3/4/2023
This kit is definitely a great value for the money. While I did experience some loose spokes causing the wheel to lose its true, it was a fairly simple fix. After traveling 800km, everything else seems to be working well for now. Overall, considering the price, this kit offers a lot of features and benefits.
Model: BZ50D 350W Front, BZ50D Front wheel ebike kit
Size: 16", 16 inch rim with tyre
Color: Black, Black
Harry
United States of America , 3/3/2023
I was hesitant to purchase an ebike conversion kit at first, but I'm so glad I did! This kit is of excellent quality, and the installation was a breeze. The motor provides a significant boost, making cycling uphill a breeze. I'm thrilled with my purchase and would highly recommend it.
Model: BZ50D 350W Front, BZ50D Front wheel ebike kit
Size: 24", 24 inch rim with tyre
Color: Black, Black
Volker
Canada , 3/1/2023
Lvbu is amazing! As an older rider, I wasn't using my bike as much until I got the Lvbu kit. Now I can ride everywhere with ease and even added a computer to track my progress. Thanks, guys!
Model: BZ50D 350W Rear, BZ50D Rear wheel ebike kit
Size: 26", 26 inch rim with tyre
Color: Black, Black
Clark
Canada , 2/25/2023
This conversion kit is fantastic - it comes complete with everything you need and works flawlessly. I was delighted to discover that turning on the kits is as easy as holding the up button for 2 seconds. Overall, I am extremely satisfied with this product - it's a great value for the price.
Model: BZ50D 250W Front, BZ50D Front wheel ebike kit
Size: 26", 26 inch rim with tyre
Color: Black, Black
Carey
United States of America , 2/24/2023
I recently upgraded from the BX to the BZ after 6 years of using the former. This company has amazing products and services, and the love and passion they put into their work is truly inspiring. Highly recommended.
Model: BZ60D 250W Front, BZ60D Front wheel ebike kit
Size: 26", 26 inch rim with tyre
Color: Black, Black
icholas
United States of America , 2/12/2023
The kit was delivered within the promised timeframe and I am pleased to report that everything is functioning properly. Installing it was not too difficult and I would definitely consider purchasing it again for my partner's bike. However, I did opt for the larger rack battery, which sits quite far back, causing me to lean forward when traversing the steep cobbled incline outside my home to prevent the front wheel from slipping. In hindsight, I would recommend going for the mid-mounted bottle battery instead.
Model: BZ50D 350W Rear, BZ50D Rear wheel ebike kit
Size: 26", 26 inch rim with tyre
Color: Black, Black
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