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Product Specifications

    Model
    RN20A / RN30A
    Battery capacity
    36V 6Ah / 36V 9Ah
    Cell quantity
    20 cells / 30 cells
    Charging time
    3.0H / 4.0H
    Charger
    AC110V - AC220V,DC42V 2A
    Assist Range
    25km / 38km

    *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.

    Top Speed
    32km/h
    Wheel size
    16" / 20" / 24" / 26" / 27.5" / 700c/ 29"
    Rated Power
    250W
    Motor Efficiency
    >80%
    Max Torque
    >4000mN.m
    Wireless Connection
    Bluetooth 5.0 (Allows the controller to connect to multiple devices at the same time)
    Charge Socket
    Type C
    Net weight
    5.5kg
    Package
    380*350*160mm

Lvbu RN Series Friction EBike Kit

Visual interactive experience

Digital screen power display /Type-C dual charging port Side power management switch / Pedal assist range of 60 km 5.0 Bluetooth connectivity /intelligent micro-power system

  • 5 minutes

    Quick installation

  • 250W

    High-speed brushless motor

  • 5 modes

    Smart assistance modes

  • 32km/hour

    Maximum speed

  • Bluetooth 5.0

    A new era of interactive experience

  • Micro Power

    Provides you the best cycling experience

Just 2 Steps to Transform Your Bike into an Ebike

The Lvbu friction ebike kit series, featuring a removable battery, requires only one cable, with a simple design and quick installation

  • Step 1:Installthe motor
  • Step 2:Install the battery
    (the controller is inside the battery holder)

Installation Requirements

There must be sufficient space below
the pedal, as shown in the diagram.

INSTALLATION REQUIREMENTS

Compatible with Various Bike Models

The Lvbu friction ebike kit series can be installed on mountain bikesroad bikes, commuter bikes, touring bikes, folding bikes, and more.

250W Brushless DC Motor

Small size, light weight, high efficiency,
smooth operation, long lifePlanetary gear and clutch

Rated power:  250W
Voltage:  36V
Structure:  Gear Drive
Efficiency:  >80%
Max torque:  >4000 mN.m

Product Advantages

High quality 18650 lithium battery

EV lithium-jon battery cell with internal resistance as low as 18m0, 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.

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

  • Over-discharge protection
  •  Over current protection 
  •  Temperature protection 
  •  Over charge protection 
  •  Short circuit protection 
  • Battery balance

Multi-function Design

Easy to operate and use

  • LED DISPLAY SCREEN

    Battery level clearly visible

  • POWER SWITCH

    Conserve battery life

  • TYPE-C DUAL CHARGING

    Emergency power bank supports phone charging

  • BATTERY LOCK

    Fixed battery, safer for cycling

ARM Cortex-M3 main chip

With 6-axis gyroscope motion processing chipConfigure Bluetooth Low Energy 5.0 10 pieces of high-sensitivity speed measuring magnets for precise speed measurement

5.0 Intelligent bluetooth connection

Bluetooth 5.0 module allows you to connect multiple devices at the same time

Micro power system

10 years of research and development has gone into creating a versatile and cost-effecive 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.

5 smart assist modes

We have spent 5 years on developing and optimizing the assist system. The assist system is based onthe speed, acceleration, the road slope, and also the assist level that you set in the APP or on theBluetooth display, calculating out the power you need. lt will assist you automatically when you pedalAnd we wilkeep on optimizing the system and publish it from time to time. You willbe able to update the system via the APP.

Commute mode Leisure mode Manual mode Exercise mode Climbing mode

Check the realtime cycling data
and set the assist mode on the APP

And also you can check the speed,temperature, power, mileage, etc.

  • Real-time data
  • Riding speed
  • Temp
  • Battery
  • Mileage
  • Lock
  • Assist mode
  • Device

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.

IP65 waterproof

lP65 waterproof grade makes you ride freely in the rain.

Anti-theft Tracking Function

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.

PACKING LIST

Welcome to send us your enquiry, we will contact you as soon as possible
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6 REVIEWS - RN Series Friction Ebike Kit
Nicholas
Kampuchea (Cambodia ) , 4/18/2025
Absolutely fantastic product. it's exactly what I needed. Thanks!
Model: RF30A 250W 9Ah, RF30A
Size: Standard, Standard
Color: Black, Standard
Rahim Paker
Singapore , 4/17/2025
The shipment arrived on time and the status was consistently updated throughout. The parcel was securely and neatly packed. The item received functions exactly as expected. Overall, it feels very safe and reliable to transact. Highly satisfied with the experience.
Model: RN20A 250W 6Ah, RN20A
Size: Standard, Standard
Color: Black, Standard
Rahim Paker
Singapore , 4/17/2025
Subject: Exceptional Service and Successful Ebike Conversion Experience Dear Nanchang Lvbu Import and Export Co., Ltd., I am writing to share my positive experience with your company and to highlight the exceptional assistance provided by Miyu Liu during my first purchase. The shipment arrived promptly, and Miyu Liu continued to impress with her support throughout the assembly process. Her responsiveness, patience, and competence in assisting with the setup were remarkable. She is a committed professional who works beyond her regular hours to ensure customer satisfaction. Thanks to her guidance, I successfully converted my bike into an e-bike without incurring hefty costs. I am extremely happy with both the product and the service I received. Miyu Liu’s dedication and expertise have made my experience not only positive but also inspiring for anyone looking to explore an affordable e-bike conversion. Thank you for providing such a secure and customer-focused purchasing experience. I look forward to future transactions with your team. Best regards, Rahim Paker
Model: RN20A 250W 6Ah, RN20A
Size: Standard, Standard
Color: Black, Standard
Olivia Evans
Indonesia , 2/22/2025
Great piece of kit and very very good customer service. Helpful with detailed questions and videos supplement the fitting and operating instruction well. I have two conversion kits from Lvbu on two bikes and very satisfied with them. (I also have an expensive high end mid drive e-bike from a top tier bike manufacturer and although not quite the same performance, these conversion kits do perform very well in comparison for a small fraction of the cost). Especially if you are getting on in years or have a limiting injury, the conversion of an existing bike is a great way to keep riding. Recommended.
Model: RN20A 250W 6Ah, RN20A
Size: Standard, Standard
Color: Black, Standard
James McDermott
Indonesia , 12/18/2024
Nice and simple kit to convert a regular bike into an e-bike. I've had my for five years now and it works great! I will definitely recommend this kit and I will order from this company again.
Model: RN20A 250W 6Ah, RN20A
Size: Standard, Standard
Color: Black, Standard
Christian Kuijt
Taiwan(China) , 11/25/2024
Good and fast help! Nice kit
Model: RN20A, RN20A
Size: Standard, Standard
Color: Black, Standard
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