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MRT Series built-in torque sensor hub motor

Built-in Cassete Torque sensor makes MRT motor a perfect alternative solution of middle drive motor
Small size, light weight, pedaling force real-time measurement, smooth start, consistent acceleration

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Product model

    model
    MRT250W

Installation parameters

    Brake type
    Disc brake
    Open size (mm)
    138
    Hub Diameter (mm)
    140
    Cable Location
    Shaft side, right
    Cable Length (mm)&spec
    245, G9.5
    Spoke Specifications
    36H13G
    Hub type
    Cassette
    Cassette
    7S-10S

Main specifications

    Position
    Rear motor
    Compatible rim size
    16"--29"
    Structure
    Gear Drive
    Rated Voltage (DCV)
    36
    No-load Speed (RPM)
    310
    Rated power (W)
    250
    Load Speed (RPM)
    280
    Maximum Torque (N.M)
    30~45
    efficiency (%)
    >80%
    Colour
    black
    Weight (kg)
    2.76
    Noise Grade (dB)
    ﹤55
    Operating temperature
    -20~70℃
    Torque measurement range (N.M)
    1~85
    50 kgf tension output voltage change (crank arm length 170mm)
    2.0V+/-0.15V

Technical Specifications

    Speed detection signal (Pulse/Cycle)
    6
    Reduction ratio
    1:5.17
    Magnet Poles (2P)
    20

Testing and certification

    Waterproof Grade
    IP 65
    Certification
    CCC, CQC, CE
    Salt Spray test (h)
    48
Lvbu MRT motor
 
Mid drive motor
Affordable and low cost

Price

High cost
Less complex and more reliable, less wear and tear, less maintenance, more service friendly
Reliability
More complex and difficult maintenance, easy to wear
Small size and light weight
Appearance
Bulky appearance
Higer efficiency due to the direct power transmission in the rear wheel
Efficiency
Propulsion power losses by transferring via the chain
Up to 1000w or more power
Power
Power is generally low
Low power consumption and long range
Range
High power consumption and short range

MRT motor structure




High quality sensors

The motor integrates sensors such as torque sensor, cadence sensor, temperature sensor and speed sensor

  • cadense sensor

    12 magnets high precise cadence sensor

  • Cassette torque sensor

    Built-in highly sensitive torque sensor
    measure the pedal force in real-time

  • Temperature sensor

    High-precision temperature sensor
    Protect the motor from over temperature

  • Speed sensor

    Real-time speed measurement
    Make riding smooth and comfortable

High cadence sensitivity

Built-in high-sensitivity cadence sensor, real-time monitoring of cadence speed, making the power assist system output smoothly

High torque density

High-strength aluminum alloy housing

Spraying surface finishing, scratching resistance and more friendly to environment

Machine winding

Machine winding, high consistency

Silicon steel sheets

20 strong magnets

PA66 reduction gear

Cold resistance, high temperature resistance, high toughness, low friction coefficient

High strenth motor shaft

IP65 waterproof grade

The waterproof grade is up to IP65

High quality waterproof cable

9 pins cable: 3 phase wires, 5 Hall wires, and 1 signal wire

Fits most of the wheel sizes

Compatible wheel sizes: 16 inch, 20 inch, 24 inch, 26 inch, 27.5 inch, 29 inch, 700C

  • 16/20/24 inch

  • 26/27.5 inch

  • 29 inch/700c

Products are exported to more than 100 countries including Europe and America

Lvbu Motor has been sold well in France, Germany, Britain, the United States, Japan
South Korea, Australia, India, Southeast Asia, etc.

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