Accelerate more smoothly with the best electric throttle on the market. This short-twist handle has snappy rebound, and it keeps up continuous speed without annoying power springs. Now you can ride harder with less wrist tension. Like all of our Sur-Ron upgrades, we provide everything that you need for easy installation. 

Works with the stock Sur-Ron controller either as with any other upgraded controller like BAC, TORP, Nucullar, ebmx, ko, fardriver, kelly, silixon, etc.

SurRon Power Upgrade Kit by EVFREAKS

Boost your SurRon's performance with our ASI BAC4000/8000 controller upgrade—tunable up to 15KW (3x stock power) for both 60V and 72V systems. Compatible with OEM or upgraded batteries and fully customizable via the Kilowatt and EggRider apps (Android/iOS).

What's Included:

Custom Tuning Session: Remote programming by an engineer tailored to your riding and gearing.
Heatsink Mounting Kit: CNC-machined heatsink with side covers and rubber mudflap for enhanced cooling and protection.
Custom EVF Wiring Loom: In-house design for a reliable, water-resistant throttle connection.
EggRider Display: High-quality LCD Bluetooth display featuring dual ROAD/OFFROAD modes and 9 assist levels.
Mounting kit, phase extension cables, BMS bypass kit, and motor temperature protection.

FAQs:

Installation DIY with instructions or professional installation available.
Power Output: Up to 7.2KW with an OEM bypassed battery; 15KW with upgraded batteries.
Customization: Full access via third-party apps, with remote support for advanced tuning.
Controller Choice: BAC4000 suits most users; BAC8000 is ideal for hotter climates or full-speed on-road use.

Note: EVFREAKS Limited accepts no liability for DIY battery bypasses or installations. Recommended for off-road and race use only.*

SurRon Power Upgrade Kit – ASI BAC8000

Boost your SurRon's performance with the ASI BAC8000 Controller, tunable up to 32KW—delivering up to 3x the power of your stock 4.8KW system. Designed for both 60V and 72V setups, it works seamlessly with OEM or upgraded batteries. Enjoy a fully custom tune via a remote engineering session and continue fine-tuning with the Kilowatt and EggRider apps (Android/iOS).

What's Included:

• Custom Tuning Session: Private remote programming by an experienced engineer.
• Heatsink Mounting Kit: CNC-machined heatsink with side covers and rubber mudflap for enhanced cooling and protection.
• Custom EVF Wiring Loom: In-house design with a direct throttle connection for improved reliability.
• EggRider Display: High-quality LCD Bluetooth display with dual ROAD/OFFROAD modes and 9 assist levels.
• Installation Brackets: Aluminum mounting bracket for secure installation.
• Phase extension cables, BMS bypass kit, and motor temperature protection.

FAQs:

• Installation: DIY with provided instructions or professional installation at our workshop.
• Power Output: Achieve up to 7.2KW with an OEM bypassed battery and up to 32KW with upgraded batteries.
• Customization: Full access via third-party apps lets you adjust settings like battery voltage, power output, field weakening, throttle voltage, and regen. Remote support is available if needed.
• Controller Choice: The BAC8000 is ideal for hot climates or continuous high-speed road use.

EVFREAKS Limited accepts no liability for DIY battery bypasses or installations. Strictly for off-road and race use.

    Keep your Light Bee X’s engine belt clean and safe with our screw-on belt protector. These Sur-Ron upgrades are 3D printed with the most durable materials, so you can ride harder and tackle extreme terrain without worrying about broken belts. This screw-on piece completely covers the gap at the jackshaft to keep dirt out.

KW: Sur-Ron upgrades

Adjustable charger up to 15amps for 72V battery packs

Specification:

• 72-84V
• You can adjust the current 2A to 12A
• Suits for 20AH to 120AH Li-battery
• Can suit for 99% Li batteries
• ​the voltage is fixed
• power 1000W
• input 230V
• size :205*150*70mm
• weight : around 2kg
• Space aluminum alloy shell
• Proper fan cooling
• Over heating protection. Over-current protection. Low voltage protection. Reverse connect protection. Short circuit protection
• Digital display charge current and charge voltage
• When it is full charged, it automatically stops slowly
• Polarity + - detection function

KW: Sur-Ron upgrades, Sur-Ron parts

Boost any of your bikes, Sur-Ron Light Bee, Talaria Sting, Ultra Bee, Stark Varg with race grade individual mapping like no others does. Our controller mapping leaves many other mapps behind )))

EvFreaks engineers can program any controller to any bike including but not limited to Sur Ron, Segway, LMX, Cake, Zero.

We can program it to work with any QS motors or any other motors on MX, Buggies, Karts conversions & etc.
One of the EvFreaks Team Engineers will remotely connect to your phone and will help you to modify your curent tune or will start working with elite EvFreaks tune.

Protective case only to fit EggRider v1 Bluetooth display

for either ASI BAC4000 or ASI BAC8000 Controllers aluminium protective case by EVFREAKS.

CNC machined from aluminium class 6.

Anodized in premium high class finish