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Electric bicycle 17A brushless controller 36V–48V
Brushless motor controller 36V/48V 17A KT - Image 2
Brushless motor controller 36V/48V 17A KT - Image 3

Brushless motor controller 36V/48V 17A KT

SKU: CTRL-BRUSHLESS-MOTOR-36V-48V-17A-KT

£35.90

KT 36V 48V 17A brushless motor controller for 250W-350W eBike motors. Reliable power delivery, smooth operation and ideal for electric bike conversion kits.

Out of stock

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For any order above £19.90 shipping is free of charge.

30 Days Return Period

You have the right to return your orders within 30 days.

Warranty

12 months warranty from date of purchase. 

 
 
 
 
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 Andrew Wragg profile picture 
 
 
 Andrew Wragg 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Everything I bought is absolutely amazing,
10/10 Customer service.
Definitely got a customer for life.
  
 
  
 
 
 
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 John Atherton profile picture 
 
 
 John Atherton 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Looks a quality charger, charged my battery very quickly.
  
 
  
 
 
 
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 Rhod profile picture 
 
 
 Rhod 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Great experience, bike was converted for me by them with their products. Price and time frame were great, the gentleman was really helpful. Will definitely be using them in the future and will be recommending anyone.
  
 
  
 
 
 
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 Josh Bowen profile picture 
 
 
 Josh Bowen 
 
 
 
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Converted my bike , did a fantastic job in just a couple of hours . The thank you George
  
 
  
 
 
 
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 Luke Chudley 
 
 
 
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 Arash Amiri 
 
 
 
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Good job and on time
  
 
  
 
 
 
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 xBruTalLobbys 
 
 
 
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Brilliant place fixed my bike with new throttle in under 20minutes highly recommended
  
 
  
 
 
 
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 Abdul Rahim Alshaikh profile picture 
 
 
 Abdul Rahim Alshaikh 
 
 
 
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Tooknto fix my bike less then 20min. Very kind and quick staff
  
 
  
 
 
 
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 Mohamed Jalal profile picture 
 
 
 Mohamed Jalal 
 
 
 
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Very good service.  I recommended 👍
  
 
  
 
 
 
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 Mma Donatus profile picture 
 
 
 Mma Donatus 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Gorge electric bike is the best for their prompt response and professional and affordable.
Since I was directed by three different dispatch riders over a year ago I have been using them
  
 
  
 
 
 
   
 
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Description

KT 36V 48V 17A Brushless Motor Controller

Compact, reliable controller for 250W–350W brushless hub motors. Supports 36V and 48V eBike systems.

36V & 48V Compatible
250W–350W Motors
17A Max Output
6-MOSFET Design
Low-Level Brake Input
Controller Type
Brushless DC
Brand
KT
Rated Voltage
DC 36V–48V
Motor Compatibility
250W–350W
Maximum Current
17A ±1A
MOSFET Configuration
6 MOSFET
Speed Signal Input
1V–4.2V
Brake Input
Low Level
Cable Length
Approx. 10–13 cm
Weight
Approx. 350g

Dual-Voltage Compatibility — 36V and 48V

This KT controller supports both 36V and 48V battery systems, making it suitable for a wide range of eBike conversion kits and replacement installations. Whether upgrading an older unit or repairing an existing system, the dual-voltage capability provides flexibility across different motor and battery combinations while maintaining smooth, predictable performance.

Optimised for 250W–350W Brushless Motors

Designed specifically for brushless hub motors rated between 250W and 350W, this controller delivers the current needed for efficient acceleration, stable cruising and responsive pedal assistance. Commonly used across:

  • Commuter and city eBikes
  • Hybrid and trekking bikes
  • DIY electric bike conversion kits
  • Replacement motor systems

Smooth Power Delivery and Efficient Motor Management

The KT 17A controller regulates communication between the battery, motor, display, throttle and pedal assist sensor. Key operational benefits include:

  • Smooth, consistent acceleration
  • Stable motor operation under varying load
  • Efficient power management to extend battery range
  • Reliable pedal assist response
  • Compact and lightweight 6-MOSFET design

Replacement Controller — Common Fault Symptoms

If your existing controller has failed due to wear, electrical faults or water damage, replacing it can restore normal operation. Common symptoms of controller failure include:

  • Motor not responding
  • Intermittent or erratic power delivery
  • Pedal assist not functioning correctly
  • Throttle issues or no throttle response
  • Unexpected system shutdowns
  • Reduced or inconsistent motor performance

A compatible replacement controller can resolve these faults and restore smooth, reliable operation.

Related Components

Browse our full range of eBike Controllers and compatible Electric Bike Conversion Kits for additional components and upgrades.

Frequently Asked Questions

What motor size is this controller suitable for?

This controller is designed for brushless hub motors rated between 250W and 350W.

Can I use this controller with a 48V battery?

Yes. The controller supports both 36V and 48V battery systems.

What is the maximum current output?

The controller provides a maximum current of 17A ±1A.

Is this suitable for electric bike conversion kits?

Yes. It is commonly used in electric bike conversion kits and as a replacement controller in existing eBike systems.

What type of brake signal does it support?

The controller uses a low-level brake input, which is standard on the majority of electric bike systems.

Not Sure if This is the Right Controller?

Message us on WhatsApp with your motor wattage, battery voltage and existing controller details and we’ll confirm compatibility before you order.

All4eBikes · 2 Beresford Road Lane, Roath, Cardiff CF24 1QU

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