Sur Ron “Trail” ASI BAC2000 Controller + Display + 60v 63Ah. Plug n Play Loom/Programmed/Brackets

£2,299.00 (price including VAT)

Sur Ron “Trail” ASI BAC2000 Controller + Display + 60v Battery 63Ah. Plug n Play Looms/Programmed/Brackets

4 in stock



Sur Ron “Trail” ASI BAC2000 Controller + Display + 60v Battery 63Ah + Mounting Brackets 

Higher Higher Amps, Higher RPM (FW)+ Higher Speed !

This is truly plug n play and expect RELIABLE speeds of around 55+ MPH
All taxes and import duties paid and free UK shipping

Now with stainless steel black powder coated mounts (only we include these)


In Stock, Now shipping within 4 working days

Sorry no international shipping

The kit has been designed to be ultra safe for the motor and drive train, but giving extra power and massive range. Personally after testing, we find this set up perfect for trail/enduro riding, although nowhere near as ferocious as our 72v race orientated kit (which now tend to ride in half power). The main purpose of this kit is to give longer range, a modest performance upgrade yet have a large financial saving over the 72v  “Enduro” kit. The battery range almost two and half times (2.3 times) greater than a standard bike!

The power take off is moderate, simliar to a standard bike, but from 15MPH really takes off. It gives a real world realistic rideable bike from 10 MPH to 55+ MPH. This not a set up for the “wheelie” rider but a true enhancement over standard with added reliability and range. A perfect set up for the long rides, whether as a commuter or trail rider. Power is faultless and seamless, with much more mid range grunt than a standard  bike.


This smaller controller can take battery swaps ranging from the standard untouched Sur Ron battery,  including a “Bypassed” Sur Ron battery.

The controller now features  a full working display showing: speed, power, battery charge, date and trip. Set with 3 power levels as default that can be flicked at the touch of a button on the fly (just your thumb, no gloves off or stopping).  Can be used like a gearbox to slip up and down the power levels to suite your terrain and riding style.

The controller comes fully potted and with all leads and looms fitted and waterproofed. The mounts are in place, stainless steel and powder coated in black.

Unleash more performance and range with correct gearing.  Higher gears (Smaller rear sprocket) does not mean higher top speed. Over laboring the motor with the wrong gearing costs top speed, acceleration and range.

A fast efficient spinning electric motor goes better – simple!

To get the best from the bike we suggest upgrading your rear sprocket to 56T for road/off road and 58-60T for pure off road.

Power sets from 3000W to 8,000W: 3 levels starting at approximately 3000w going up equally to 8,000w


Controller Feature Set

  • FOC (Field Oriented Control)
  • Improved torque throughout the rev range
  • Higher RPM compared to the stock controller due to Field Weakening
  • Silky smooth throttle control and responsiveness, like a fine adjustable knob on a light switch
  • Improved efficiency due to FOC algorithm, premium internal components within the controller (like the mosfets) which increases efficiency while reducing heat losses
  • Loom
  • Mounting Kit
  • Install Instructions
  • Display


Battery 60v 63Ah Panasonic 21700 cell 3780Wh (watt hours – not watts!)

Designed to run the ASI BAC2000 and Nuclear controllers set no more than 9000W continuous or 375 A phase.

Long Range Sur Ron Battery 16S13P 60v 3780Wh 63Ah Panasonic 21700 cell.  ANT bluetooth BMS (works on IOS and Android) designed to fit inside the Sur Ron battery compartment utilizing the existing battery tray. The Cells are genuine branded cells specifically designed for high output discharge and sustained medium drain. Other inferior cells used in cheaper packs simply can’t deliver like these. If you think the cost is high, these batteries have 208 cells that retail in the UK for around £6 each! not including: BMS, fabrication and shipping taxes.

The whole battery is fitted in  hand made stainless steel case designed to handle those inevitable and hopefully not painful “Offs” with hard off road rides and giving masses more protection.


16s13p Panasonic 21700
Weight 18 kG
Bluetooth ANT BMS set at 300 Amps Peak Monitors: charge, discharge, low voltage over voltage and short circuit protection and over heating.
Double sandwich configuration using special custom made cell holders (not glued).
0.2mm pure welded nickle laser cut sheet.
Ant Bluetooth BMS giving individual series condition with balanced charging and on/off function via a mobile device (we recommend always leaving on – never use SHUTDOWN).
The BMS gives a whole range of safety features including short circuit detection and shut down, overheating and damaged series connection.
An integrated handle for lowering the battery in and out.
Charging port via an XT60 connector. Adapter supplied to work off your original SR charger.
The main battery to controller connectors we use are the same type as used by Sur Ron to keep everything compatible. This allows you to swap your standard battery back should you wish.
The battery is in a super tough hand built stainless steel case designed to keep your battery safe in an accident and waterproof  except immersion or direct jet washing at the cable exits. Designed to fit straight into the bike and maximize the whole battery compartment (the hatch bolts need swapping out with longer bolts that we supply – 2 minutes and simple). No movement- no rattles!
From our tests, not all Sur Ron frames are exactly the same. Sur Ron recently seem to have let their quality control down a bit. On our mark two prototype (pre-releases) we suddenly found that our case did not fit in the 4th bike we tested it in, Sur Ron had not cleaned the battery compartment frame welds. We then went back to the drawing board and re-designed the case.
The new and for sale case has flitted all 4 test bikes. Its a snug and tight fit to maximize the cell capacity and keep the battery as low as possible. It is very slightly possible that there is another bike out there with poor welds. In this case there is a small possibility that your bike welds will need cleaning up with a dremmel/grinder. This is a simple job and causes no damage to the bike. I would like to make the point clear that we do not expect this to be needed by 99% of our customers the battery should slot straight in.

Please ALSO note, these are genuine new cells and made up into a complete battery specially designed by us, built at our factory, or here in the UK, by our dedicated battery builders. We simply can’t buy a single battery.  Thanks to Paypal fees, shipping and taxes our markup is minimal!

* 6 Month Warranty is for manufacturing defaults and does not cover miss use or accidental damage. These units are extremely strong and robust and will not let you down unless abused. We undertake warranties here in the UK. We take the pain!

Please note, Lithium batteries are considered hazardous and due care and attention should be taken. Although these cells are in wide use, and professionally manufactured in a purpose built factory; because of the power of the battery, we strongly recommend that precautions are taken. We do not recommend charging inside the family home and charging should be supervised. We take no responsibility for misuse. These batteries are thoroughly tested (full discharge and charge cycles at the manufacturing stage and also pre-delivery). These are not DIY or amateur built devices.

Fitting Services (highly recommended)

We now offer a fitting service in different location around the county.

Each location has different working patterns.

Generally the bike will need to be dropped of at prior arrangement and collected one working week later. but must include a full weekend in between.

Price £229 through the website of £200 direct to fitter and not included with the original controller purchase.

Current fitting locations are:

North Devon (Barnstaple)

North Wales (Holywell)

Maidstone (Kent)

Watford (Hertfordshire)

South Coast (Portsmouth)


Self Fitting:

We will provide you with a 13 page illustrated set of instructions. However we do strongly advise for one of our fitters to install the kit. We do make the assumption that if you are fitting this kit yourself, you know what you are doing. All kits leaves here tested and working. Think of it like this. You buy a motor from Honda, Suzuki etc. and fit yourself. You would not expect Honda to talk you through the fitting. We will not give support outside of Monday – Friday normal business hours.

This is a plug and play system, but we now believe there are at least three slightly different version of the Sur Ron Lightbee motor. This can cause some minor issues. Because of this we now include 1 hour free remote support during our working hours (9 – 5.30 Monday-Friday). We strongly advise that you factor in our working hours when fitting. We are unable to give support outside these hours. To give remote support you will need either an media phone/note pad and a good internet connection.

We do not warranty damage caused from your fitting / installation. Every kit is bench tested before leaving our premises.

We give UK support!!!!

* UK Warranty 

Our warranty is limited to 6 months from time of purchase. Due to the use and the nature of this device (Off-Road) and the potential excess  exposure to: water, rain, mud and the possibility to sustained high powered use/abuse, we do not warranty controllers that show signs of damage, excess heat or water penetration. The controllers are fully bench tested working with a full working motor before leaving our premises. Any damage caused by your installation is not covered by our warranty. We highly recommend the use of one of recognized fitters where installation is fully covered.

Warranties are not transferable.

We reserve the right to slightly modify or change this product without notice.



Buyer releases Electron Cycles or any person trading on or behalf of the business known as Electron Cycles from any liabilities, therein known as Electron Cycles (expressed or implied, arising by law or otherwise) that may occur from the use of products sold by Electron Cycles and purchased by Buyer. These products are being sold for “Off Road/Competition Use” only and may be used only on two wheel vehicles (bicycles, electric bicycles, two wheel electric powered vehicles) used solely for “Off Road/Competition” (off-road being defined as a private land with land owners permission and not public highway or byway). The Buyer also recognises that Lithium batteries are classed as hazardous and should not be: stored, used, charged in place, facility any area that is not fire proof or safe to do so. That batteries should not be taken into the family home, office, workplace or school place. No other applications are intended or implied. The Buyer of product sold or provided by Electron Cycles acknowledges and agrees that Seller disclaims any warranty and expressly disclaims any liability for personal injury or damages or any damages to vehicle, expensed occurred, personal property or third persons. Electron Cycles will uphold the warranty of the manufacture of the product sold for a period of six months from date of purchase from manufacturer defect. In the event a manufacturer’s warranty exists, it is agreed and stated that Under no circumstances shall the seller or manufacture be liable for any labour charged or travel time incurred in diagnosis for defects, removal, or reinstallation of this product, or any contingent expenses.



Additional information

Weight 19 kg
Dimensions 50 × 28 × 35 cm