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~ FREE SHIPPING ON ALL UK ORDERS OVER £50 ~ Tel: 01803 527833
~ FREE SHIPPING ON ALL UK ORDERS OVER £50 ~ Tel: 01803 527833

Thermo Nucular 24F Controller & Protection Kit (20kW) for Sur Ron

by Nucular
Sold out
Original price £1,250.00 - Original price £1,250.00
Original price
£1,250.00 - £1,250.00
Current price £1,250.00


Plug & Ride Kit for Sur-Ron electric bikes. Connects to the standard wiring instead of the factory controller. All systems (kickstand, fall sensor, throttle, and key) will work. You will increase speed by 13-20 mph and power by 1000-1500W on a standard battery. When replacing the battery, the power increase up to 20 kW.

In the kit:

  • Thermo Nucular 24F controller with firmware for Sur-Ron
  • The filling with compound for the controller
  • On-board computer with a fork mount
  • Wiring with connectors for connecting to Sur-Ron
  • Display + 1 extra display glass
  • Protection Grid
  • Regenerative Braking Thumb Throttle 

Increase your speed and triple your battery output

The Thermo Nucular 24F controller is one of our favourite Sur-Ron upgrades because it’s so user-friendly!

Our plug-and-play kit includes the 24F controller, its LCD computer screen, connecting wires, and a protection grid manufactured by EVFreaks.

This is currently the only controller on the market with firmware specifically designed for the Sur-Ron Light Bee X. Plus, it has an on-board computer that can be programmed by the average rider, so you don’t need a laptop or professional programmer.

These elite controllers currently have a 7 month preorder queue when you order direct from the factory, but our kits are ready to ship!

  • Compatible with all Sur-Ron systems (incl. kickstand, fall sensor, throttle, key)
  • DIY setup with on-board computer
  • Includes wiring connectors
  • Mounting and protection grid
  • IP67 Compound filled
The best aftermarket controller and easiest to setup; no laptop needed, do everything on your own just pressing buttons on the screen in less than 5 minutes.

Technical Specification

Maximum Power
Nominal Power
Voltage Range 20-90V
Max. Phase 
Max. Battery 
Supply Output
12V 3A
Operating Temp
-30°C to 80°C
Phase Wires
7AWG Terminals M6
Battery Wires
8AWG Terminals M6
Hall Connectors
Auto Waterproof 6P
Control Modes
Square, Sensorless, FOC, Charger
Temperature & Hardware Over-current Protection
Sleep Current
Protection Class
IP54 (IP67 with compound)
Size (w/o wires)
86х43х185 mm


Onboard Computer

The on-board computer is equipped with the large sunlight resistant screen to display main parameters, driving modes settings, software updates for all system components, battery control, and the charging state of the devices via USB.


  • Charge, speed, power, current, voltage and etc. display
  • Shows information from all devices on CAN-bus
  • Software update for devices from MicroSD card and parameter setup
  • Integrated accelerometer
  • A lot of control inputs, use just single wire from Display to Controller
  • Handy panel with connectors on the backside, no need for external waterproof connectors
  • GoPro mount to steering tube included
  • Configurable fonts, multi-language
  • Big, visible under direct light LCD
  • Embedded light sensor for bright control and headlight
  • LCD heater for protection from condensate and for winter
  • Size (WxHxD): 80x90x17 mm
  • Weight 110 g

Technical specifications

  • LCD size 2.9"
  • FSTN, monochrome
  • Screen resolution 240x128 px
  • Screen heating
  • RGB-button backlight
  • MicroSD slot
  • USB-charger 5.2V 2А
  • Password protection
  • Multi-language (English, Russian)
  • IP54 class