Talaria BAC4000 upgrade kit · Talaria Sting · reverse gear included
Up to 15 kW for the Sting, a reverse gear on the red button, and a loom made for Talaria plugs.
The Talaria BAC4000 upgrade kit swaps the stock Talaria Sting controller for an ASI BAC4000 on a custom wiring loom. On the original 60V battery it runs 5 kW. Bypassed, 8 kW. On a 60V or 72V battery that can deliver the current it is set to 12 kW or 15 kW, roughly three times what the bike left the factory with.
Nothing is soldered and nothing is cut. The old controller comes out, the new loom clicks in, and an ElectricGen engineer tunes the BAC4000 to your battery and your riding in a remote session that is part of the kit.
What the Talaria BAC4000 upgrade kit changes on the Sting
The Sting has a strong motor and a cautious controller. The BAC4000 lets the motor work, and it gives you a reverse gear the bike never had.
Torque
Pull from the first metre
The BAC4000 feeds far more phase current to the Talaria motor than the stock unit. The rear wheel answers the throttle immediately, which is exactly what you want on a climb or out of a rut.
Speed
A higher ceiling in every gearing
More power raises top speed with any sprocket. How far depends on your rear sprocket and tyre, so you can gear the Sting for tight woods or for open ground.
Reverse
The red button, repurposed
The red button on the original Talaria throttle becomes reverse. Back the bike out of a tight spot or onto a trailer without wrestling it.
Settings
Yours to change
Power, assist levels in percent, wheel size for accurate speed, km/h or mph. With FabiRide Dash Pro you change them from the bars. With any other display, our engineer sets them with you.
Heat
Motor temperature protection
The controller watches motor temperature and trims power before heat becomes damage. An optional radiator keeps the BAC4000 itself cooler on long climbs and hot days.
Loom
Made for Talaria plugs
A custom wiring loom carries the stock throttle, brake sensors, motor phases and battery lead to the ASI. Every connector matches the Sting, so there is nothing to adapt.
Power by battery: 5, 8, 12 or 15 kW
The controller is the same in every Talaria BAC4000 upgrade kit. What changes is how hard we let it pull, and that depends on what your battery can give.
| Battery | Controller setting | Notes |
|---|---|---|
| 60V original Talaria battery | 5 kW | The stock BMS limits current. This is the safe ceiling for an untouched pack. |
| 60V bypassed battery | 8 kW | The bypass kit routes power around the stock BMS. More power, but more wear on an ageing pack. |
| 60V high current battery | 12 kW | Needs a pack built to deliver the current, for example our 60V 70Ah High Power Talaria Sting battery. |
| 72V high current battery | 15 kW | The full BAC4000 figure, on a 72V 50Ah or 72V 55Ah Talaria Sting battery. |
How you answer Select your battery depends on the display. With FabiRide Dash Pro choose the range, 60V to 72V, because you set the controller’s battery voltage yourself and change it when you change packs. With Eggrider V2 pick the exact battery you ride, because the controller is tuned for that pack and only a re-tune by us changes it later.
A word on the bypass option. It raises power because it removes the current limit that protects the cells. A healthy pack handles it, while an older or poorly maintained pack will age faster. For 12 kW or more, a battery built for the current is the better road.
Choose your display: FabiRide Dash Pro, Eggrider V2 or your own
The Display option decides what you see on the bars and how much of the ASI you can change yourself. Every Talaria BAC4000 upgrade kit ships tuned and ready to ride whichever display you pick, but only one of them talks back to the controller.
FabiRide Dash Pro
A colour touchscreen that reads the ASI and writes settings back to it, from the bars or from the free FabiRide app. It also carries your phone: calls, messages and music appear on the display. See the full Dash Pro feature list.
Eggrider V2
A compact display with a button that switches the controller on and off and a phone app for the basic readings. A good fit if you want the power and not the screen. Eggrider V2 details.
Already running an Eggrider V2? Contact us before you order and we will set the kit up for it. The APT 750C is not offered with this kit at the moment.
What Dash Pro adds to the Talaria BAC4000 upgrade kit
Most displays only show numbers. Dash Pro changes them. On an ASI BAC controller every one of these works, because the display talks to the controller in both directions.
Tune from the bars
Power, speed and assist levels
- Edit the assist levels in percent and the power and speed behind them
- Up to ten riding maps, each with its own speed, power and regen
- Pin one map so the bike always starts there
Battery voltage
Run a 60V or a 72V pack, your choice
- The battery voltage setting is yours to change in Dash Pro, so one kit runs a 60V pack today and a 72V pack next season
- Swap batteries without sending the controller back for reprogramming
- Choose 60V to 72V in the battery selector; that option exists for Dash Pro only
Limiter
A cap you lift with one press
- Set a speed and power ceiling for the road, the kids or a new rider
- Lift it again from the handlebar remote
- Per rider ceilings stay on the bike
Reverse
Reverse on the red button and on the bars
- The kit turns the red button on the stock Talaria throttle into reverse
- Dash Pro adds reverse to its own handlebar buttons too
- A live indicator on the dashboard shows when reverse is engaged
Phone on the bars
Calls, messages, music
- Answer or reject calls from the handlebar remote
- Read incoming messages on the display
- Skip tracks and change volume without touching the phone
Safety and trips
Crash detection and ride history
- Crash detection sends an SOS with your location to your emergency contacts
- Every ride is recorded with its route on a map
- Full statistics per trip in the app
Reverse already comes with the kit on a Talaria: the red button on the original throttle is repurposed as reverse gear. Dash Pro adds it to the handlebar buttons as well and shows a live indicator while it is engaged.
The FabiRide app is free on iPhone and Android, and the same account opens in any browser. Settings and ride history live in the account, so a new phone loses nothing.
01
Set up
A short wizard connects the display to the ASI and asks only about things your bike has.
02
Tune
Riding maps, battery voltage, assist levels, throttle and brake feel, all written to the controller.
03
Share
Add riders with their own ceilings. The bike remembers who is on it.
What is in the box
Pick the options you need in the selector above and the Talaria BAC4000 upgrade kit arrives complete. Nothing else is required to ride.
Controller
ASI BAC4000
Tuned for your battery before it ships, then fine tuned with you in the remote session.
Harness
Custom Talaria loom
Phase leads, battery lead, throttle, brakes and display on the connectors the Sting already uses.
Display
Your choice
FabiRide Dash Pro or Eggrider V2, plugged into the loom and ready.
Mounting
Controller holders
Brackets that put the BAC4000 where the stock controller sat.
Optional
Controller radiator
A finned heatsink for the controller. Worth it for long climbs, heavy riders and hot summers.
Optional
Regen thumb throttle
A second thumb lever for regenerative braking, so you slow the bike and put charge back without touching the brakes.
Optional
Bypass kit
For the 8 kW setting on the stock 60V battery. Read the battery note above before you tick it.
Fitting the Talaria BAC4000 upgrade kit
01
Remove the stock controller
Remove the battery, unplug the stock Talaria controller and take it off its mount. No connector is cut.
02
Plug in the loom
Every lead on the custom loom ends in the plug the Sting already has: throttle, brake sensors, motor phases, battery and display. Match and click.
03
Mount and route
Sit the BAC4000 in its holders where the old controller was, add the radiator if you chose it, and route the display lead to the bars.
04
Remote tuning session
Book the session that comes with every kit. An ElectricGen engineer connects to the controller, checks your installation, and tunes the settings to your battery, your riding and your terrain.
Keep it dry. The controller and its white signal connector must be protected from dirt and water during and after the installation. Water inside that connector is the one failure the kit cannot protect itself against.
Talaria BAC4000 upgrade kit specifications
| Item | Detail |
|---|---|
| Controller | ASI BAC4000 (manufacturer page) |
| Motor control | Direct field oriented control, sensorless, auto tuning |
| Input voltage, manufacturer rating | 24 to 72 VDC |
| Peak phase current, manufacturer rating | 430 A |
| Kit power settings | 5 kW, 8 kW, 12 kW or 15 kW depending on battery |
| Battery | 60V or 72V pack; with FabiRide Dash Pro any pack from 60V to 72V |
| Reverse gear | Yes, on the red button of the stock throttle; also from Dash Pro |
| Communication | CAN bus and TTL to the display; Dash Pro reads and writes settings |
| Fits | Talaria Sting |
| Displays | FabiRide Dash Pro or Eggrider V2 |
| Installation | Plug and play, no soldering, no cutting |
| Tuning | Remote session with an ElectricGen engineer, included |
Questions before you order
Does the Talaria BAC4000 upgrade kit work with the stock 60V battery?
Yes. On the original pack the controller is set to 5 kW. Add the bypass kit for 8 kW. For 12 kW or 15 kW you need a 60V or 72V battery that can deliver the current, such as the ElectricGen Talaria Sting packs linked above.
How does reverse gear work on the Talaria?
The kit repurposes the red button on the original Talaria throttle. Press it and the motor turns backwards. If you pick FabiRide Dash Pro, reverse is also on the display’s handlebar buttons, with an indicator on screen.
Do I have to solder, cut or reflash anything?
No. The Talaria BAC4000 upgrade kit uses the connectors already on the Sting, the controller arrives tuned, and the display plugs into the loom. Fitting is a matter of unplugging the old controller and plugging in the new one.
Can I change the battery voltage myself?
With FabiRide Dash Pro, yes. The battery voltage setting is on the display and in the app, so one kit runs a 60V pack and a 72V pack, which is why Dash Pro orders use the 60V to 72V option. With an Eggrider V2 the kit is tuned for the battery you pick at checkout; contact us and we re-tune it remotely when you change packs.
Which Talaria models does it fit?
The Talaria BAC4000 upgrade kit is made for the Talaria Sting. If you ride another Talaria model or your bike has been modified, send us a photo of your controller plugs before you order and we will confirm the fit.
BAC4000 or BAC8000 for the Sting?
The Talaria BAC8000 upgrade kit reaches 15 kW on a 60V battery and 18 kW on 72V, with more current reserve. The BAC4000 is the lighter, more affordable route to 15 kW and suits most riders who keep the stock motor.
Related to the Talaria BAC4000 upgrade kit: Talaria BAC8000 upgrade kit · FabiRide Dash Pro display · BAC4000 and BAC8000 radiator · Talaria Sting batteries · all Talaria Sting controllers and electronics
EdvÄ«ns –
With this controller my bike has more torque. Best upgrade until now 🙂