MTX39 3000W EBike Conversion Kit 250W Road Legal Limiter Switch 60A SINEWAVE Controller 48V 52V 60V 72V High Torque Electric Bike MTX Conversion Kit MTX39 Rim 26" 27.5" 29"

 

# 250W Speed-Limited MTX39 E-Bike Conversion Kit

Transform your existing bike into a **speed-limited electric bike** with this MTX39 conversion kit, featuring a **250W maximum motor power setting and a 15.5 mph (25 km/h) speed limit**.

The included **250W Speed Limit Switch** disables the throttle and limits the motor output to a maximum of 250W, helping configure the system for UK road-legal e-bike requirements when the complete bike and setup meet all applicable regulations.

Available with **24", 26", 27.5", and 29" MTX39 rear motor wheel options**, this kit provides the key components needed to convert a compatible bicycle to electric power.

### Motor Specifications

* **Maximum Limited Power:** 250W
* **Speed Limit:** 15.5 mph / 25 km/h
* **Throttle:** Disabled when the 250W speed-limit function is activated
* **Motor:** MTX39 Rear Hub Motor
* **Motor Voltage:** Compatible with 48V / 52V / 60V / 72V systems
* **Magnet Width:** 45mm
* **Magnets:** 23 pairs / 46 pieces
* **Hall Sensors:** Dual Hall Sensor System — one spare
* **Motor Efficiency:** Up to 84.8%
* **Maximum Torque:** 80.3 N·m
* **Maximum Rotation:** Approximately 642 RPM
* **Rated Rotation:** Approximately 600 RPM
* **Motor Weight:** Approximately 10 kg
* **Rear Dropout:** 135mm
* **Drive Type:** Single-Speed Freewheel

### What's Included

1. **MTX39 Rear Hub Motor Wheel** — 24", 26", 27.5", or 29"
2. **Universal 18-MOSFET Sine Wave Controller** — 48V / 52V / 60V / 72V, 60A
3. **UKC1 Colour Display**
4. **Twist Throttle**
5. **2 × Brake Sensors**
6. **Pedal Assist Sensor (PAS)**
7. **2 × Torque Arms**
8. **250W Speed Limit Switch** — limits motor power to 250W, caps speed at 15.5 mph, and disables the throttle

### No Battery Included

**This conversion kit does not include a battery.** A compatible battery must be purchased separately. Please ensure the battery voltage matches the controller configuration selected for your build.

### Built for a Controlled E-Bike Conversion

The MTX39 hub motor provides a robust foundation for an e-bike conversion, while the included speed-limit function allows the system to be configured for **250W maximum motor power and 15.5 mph maximum assisted speed**.

**250W Limit. 15.5 MPH. Complete Conversion Kit.**

**Important:** UK e-bike regulations include requirements beyond motor power and speed, including pedal assistance and other vehicle specifications. Always ensure your completed e-bike complies with current UK legislation before use on public roads.