The LVBU MRT Series features a built-in cassette torque sensor — delivering a mid-drive-like riding experience in a compact rear hub motor. Real-time pedal force measurement enables smooth starts and consistent, responsive acceleration.
High-Strength Aluminum Alloy Housing
Precision spray-finished surface for superior scratch resistance and an environmentally friendly manufacturing process.
Motor Structure
► Cassette — Built-in Torque Sensor
The torque sensor is integrated directly into the cassette, measuring your pedal force in real time so the motor responds instantly to every stroke.
► Coil — Machine Winding
Automated machine winding ensures high consistency and precision across every unit.
► Steel Sheets
Silicon steel laminations for efficient magnetic flux and reduced core loss.
► Magnets
20 high-strength permanent magnets for powerful and stable torque output.
► Reduction Gears
PA66 nylon reduction gears — cold and heat resistant, high toughness, and low friction coefficient for quiet, long-lasting operation.
4 Integrated Sensors
The MRT motor combines four precision sensors to deliver intelligent, adaptive power assist.
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Cadence Sensor 12-magnet high-precision cadence sensor for smooth, real-time pedaling detection. |
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Cassette Torque Sensor Built-in highly sensitive torque sensor measures pedal force in real time for natural, proportional assist. |
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Temperature Sensor High-precision thermal protection — automatically limits power to prevent overheating. |
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Speed Sensor Real-time speed monitoring ensures smooth, comfortable power delivery at every pace. |
High Cadence Sensitivity
The integrated high-sensitivity cadence sensor monitors pedaling speed in real time, allowing the assist system to respond fluidly to changes in rhythm.
High Torque Density
Compact design with an exceptional power-to-weight ratio — more torque from a smaller, lighter package.
High-Strength Motor Shaft
Engineered for durability under load, the reinforced motor shaft handles demanding terrain and riding conditions reliably.
IP65 Waterproof Rating
Sealed to IP65 — protected against dust ingress and low-pressure water jets, suitable for all-weather riding.
High-Quality Waterproof Cable
9-pin waterproof connector: 3 phase wires, 5 Hall sensor wires, and 1 signal wire — clean and reliable wiring for DIY builds.
Wide Wheel Size Compatibility
Fits most standard wheel sizes: 16", 20", 24", 26", 27.5", 29", and 700C — suitable for a wide range of bike frames and styles.
Main Specifications
| Parameter | Value |
|---|---|
| Position | Rear motor |
| Compatible rim size | 16"–29" |
| Structure | Gear Drive |
| Rated Voltage (V DC) | 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 Level (dB) | <55 |
| Operating Temperature | −20–70°C |
| Torque Measurement Range (N·m) | 1–85 |
| Torque Sensor Output Voltage (50 kgf, 170mm crank) | 2.0V ± 0.15V |
Technical Specifications
| Parameter | Value |
|---|---|
| Speed Detection Signal (Pulse/Cycle) | 6 |
| Reduction Ratio | 1:5.17 |
| Magnet Poles (2P) | 20 |
Installation Parameters
| Parameter | Value |
|---|---|
| Brake Type | Disc brake |
| Axle Opening Size (mm) | 138 |
| Hub Diameter (mm) | 140 |
| Cable Location | Shaft side, right |
| Cable Length & Spec (mm) | 245, G9.5 |
| Spoke Specifications | 36H13G |
| Hub Type | Cassette |
| Cassette Compatibility | 7S–10S |
Testing & Certification
| Parameter | Value |
|---|---|
| Waterproof Rating | IP65 |
| Certification | CCC, CQC, CE |
| Salt Spray Test (h) | 48 |
