The ASI BAC8000 controller kit is a complete motor controller upgrade built specifically for the Sur Ron Light Bee X electric dirt bike. It replaces the stock Sur Ron controller and matches the standard connectors on that bike. Every kit ships with the BAC8000 controller, your chosen display, controller mounting brackets and the connection wiring.
Installation is genuinely plug and play. No soldering is required, and the loom stays intact. You remove the original controller and fit the new one in the same position, so the job takes very little bench time. Nothing on the bike needs cutting or modifying.
The controller runs on 60V and 72V batteries, with output configured between 5000 W and 18,000 W. Before ordering, you choose the display (750C or Eggrider V2) and state which battery you run. We then configure the controller around that battery, so it arrives ready to ride.
Key Benefits
- Plug and play fitment – no soldering and no wiring modifications on the Light Bee X.
- Power tuning from the display – adjust settings directly through the 750C or Eggrider V2.
- Assist levels set by percentage – assign an exact power percentage to each riding mode.
- Adjustable wheel size – enter your true wheel diameter for accurate speed readings.
- Motor protection – the controller limits output before the motor overheats.
- Battery wear protection – power tapers as the pack voltage drops.
- 60V-72V operating range – suits several different battery formats.
- Selectable speed units – switch the display between km/h and mph.
Who Is This Kit For
This kit is made for the Sur Ron Light Bee X. It is a direct replacement for the original Sur Ron controller and uses the standard connectors already on the bike. As a result, it suits riders who want considerably more power without rebuilding the machine.
It fits owners running the stock 60V battery just as well as those on upgraded packs. Riders with a bypassed 60V battery, a 250 A 60V pack or a 250 A 72V pack all get a configuration matched to their setup. Because the tuning happens before dispatch, you are not left guessing at parameters.
It is equally suited to riders who prefer to manage power themselves. Since assist levels are percentage based, you can keep one gentle mode for tight trails and one full-output mode for open ground.
What Is in the Box
- 1x ASI BAC8000 controller
- 1x display of your choice – 750C or Eggrider V2
- 1x set of controller mounting brackets
- 1x connection wiring
Technical Specifications
| Controller model | ASI BAC8000 |
| Fits model | Sur Ron Light Bee X |
| Installation type | Plug and play – no soldering, no modifications |
| Operating voltage | 60V-72V |
| Output with stock 60V battery | 5000 W |
| Output with bypassed 60V battery | 7200 W |
| Output with 60V / 250 A battery | 15,000 W (15 kW peak) |
| Output with 72V / 250 A battery | 18,000 W (18 kW peak) |
| Display options | 750C or Eggrider V2 |
| Speed units | km/h or mph |
| Assist levels | Adjustable by percentage (%) |
| Protections | Motor overheat protection, battery wear protection |
| Wheel size | Adjustable via display |
| Condition | Fully prepared and configured for your chosen battery |
Why Choose the ASI BAC8000
The gains are measurable rather than vague. With a bypassed battery, output rises by 75-90 % over stock. That translates into noticeably stronger drive and acceleration at the rear wheel, plus a higher top speed.
Move to a dedicated 60V or 72V pack and the picture changes again. At 15 kW or 18 kW, output climbs by 180-300 %. In practice, that is roughly double the power, traction and acceleration of a bypassed battery setup.
Top speed also depends on your rear sprocket choice. The original sprocket has 48 teeth, while the largest commonly fitted option is 64 teeth. Consequently, sprocket selection shapes your final maximum speed as much as the controller does.
Frequently Asked Questions
Does the ASI BAC8000 fit the Sur Ron Light Bee X?
- Yes, the kit is built for the Sur Ron Light Bee X.
- It replaces the original Sur Ron controller directly.
- It uses the standard connectors already fitted to the bike.
Do I need to solder anything to install it on the Light Bee X?
- No, installation is plug and play.
- The wiring loom does not need cutting.
- You remove the stock controller and fit the new one in its place.
Which batteries does the controller work with?
- It runs on 60V and 72V batteries.
- Stock 60V packs are configured to 5000 W.
- Bypassed 60V packs are configured to 7200 W.
How much power can I get from it?
- A 60V pack delivering 250 A gives 15,000 W, or 15 kW peak.
- A 72V pack delivering 250 A gives 18,000 W, or 18 kW peak.
- Configuration is set before dispatch to match your battery.
Which display should I choose?
- You pick either the 750C or the Eggrider V2.
- Both allow power adjustment and percentage-based assist levels.
- Both switch between km/h and mph.
Can I change the wheel size setting?
- Yes, wheel size is adjustable through the display.
- Entering the exact size improves speed accuracy.
Does it protect the motor and battery?
- Motor protection prevents overheating during hard use.
- Battery protection reduces power as the pack drops in charge.
How much will my top speed increase?
- Speed gains depend on the rear sprocket fitted.
- The stock sprocket has 48 teeth; up to 64 teeth can be used.
- A bypassed battery already raises top speed over stock.
The ASI BAC8000 kit turns the Light Bee X into a far stronger machine while keeping the original wiring untouched. Choose your display, tell us your battery, and the controller arrives configured and ready to fit.
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