Electro City Bikes
E-Bike Conversion Kit, MTX Rim 250WATT, 27.5/29/700C
E-Bike Conversion Kit, MTX Rim 250WATT, 27.5/29/700C
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36V 250W MTX E-Bike Conversion Kit (SW900 LCD + 15A Controller + Controller Box) – Rear Hub Motor Wheel
Convert your bike into a smooth, reliable commuter with our 36V 250W eBike conversion kit, built on a heavy-duty MTX rim for strength and stability. This rear hub motor conversion kit includes the SW900 LCD display, a matched 36V 15A controller, and a controller box for a cleaner, more protected install.
Why riders choose this 36V 250W kit
- Efficient 250W assistance for everyday riding and commuting.
- MTX rim wheel build for durability on real roads.
- SW900 LCD display for speed, trip/ODO, assist levels, battery readout and system info.
- 36V 15A controller for stable power delivery and predictable acceleration.
- Controller box included to help keep wiring tidy and the controller protected.
What’s included in the kit
- 36V 250W rear hub motor laced into an MTX rim (wheel supplied as per your selected variant)
- 36V 15A controller
- SW900 LCD display + handlebar control buttons
- Controller box
- Main wiring harness + essential installation hardware
Battery not included unless your chosen option states otherwise.
Core specifications
| System voltage | 36V |
| Motor rating | 250W hub motor (rear wheel) |
| Controller | 36V 15A |
| Display | SW900 LCD |
| Wheel build | MTX rim |
| Controller protection | Controller box included |
Battery range comparison (36V)
Range depends on hills, speed, tyre pressure, temperature, rider weight and assist level. To keep it honest, the table shows three real-world scenarios: Eco (8Wh/mi), Typical (12Wh/mi), and High assist / hilly (20Wh/mi).
| Battery | Energy (Wh) | Eco range | Typical range | High assist / hilly |
|---|---|---|---|---|
| 36V 10Ah | 360Wh | 45.0 mi / 72.4 km | 30.0 mi / 48.3 km | 18.0 mi / 29.0 km |
| 36V 13Ah | 468Wh | 58.5 mi / 94.1 km | 39.0 mi / 62.8 km | 23.4 mi / 37.7 km |
| 36V 14.4Ah | 518Wh | 64.8 mi / 104.3 km | 43.2 mi / 69.5 km | 25.9 mi / 41.7 km |
| 36V 15.6Ah | 562Wh | 70.2 mi / 113.0 km | 46.8 mi / 75.3 km | 28.1 mi / 45.2 km |
| 36V 24Ah | 864Wh | 108.0 mi / 173.8 km | 72.0 mi / 115.9 km | 43.2 mi / 69.5 km |
Compatibility checklist (before you order)
- Wheel size: choose the correct wheel option for your bike.
- Brake type: match your setup (disc vs rim) based on the wheel variant you select.
- Battery: must be 36V and correctly connected to the controller.
- Install quality: torque arms / correct axle seating and proper cable routing matter (especially on daily riders).
FAQ (36V 250W conversion kit)
What does the SW900 display show?
It supports key ride data like speed, distance (trip/ODO), assist levels and system indicators, with configurable settings.
Is a 15A controller a good match for 36V?
36V × 15A gives a peak electrical input around 540W under load (actual delivered power depends on controller limits, motor efficiency and riding conditions),
which helps with usable torque while still being a sensible commuter setup.
SEO keywords covered naturally: 36V 250W eBike conversion kit, 250W rear hub motor kit, MTX rim e-bike kit, SW900 LCD display, 36V 15A controller, electric bike conversion kit.
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