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The ASI BAC2000 is an entry-level high-power compact sinusoidal FOC motor controller from Accelerated Systems Inc., rated 2000W continuous at 48V with 200A peak phase current over a 24-72V nominal range. It uses hall-start/sensorless commutation with auto-tuning and is configured over ASI's BACDoor serial software (TTL-232/CANopen, optional Bluetooth). Popular for high-power e-bike, off-road, e-moped, and small utility-vehicle builds; widely used with CYC X1 Pro mid-drive kits.

In brief: 24–72V controller. 80A continuous. 100A peak. FOC, dual mode, regen, field weakening, self-learning support. From $368.

Specs verified Jun 11, 2026

Where to Find

Prices tracked across 1 seller

CYC Motor

$368.00

Price History

Price History
Price changes tracked by the crawler

Current best price $368.00. Over the past 90 days: low $368.00, high $368.00, average $368.00 — about average.

  • CYC Motor
Jun 10$366.00$367.00$368.00$369.00$370.00
All Records
1 price record in this period
DatePriceShippingTotalChangeCouponRatingSalesIn StockStatus
CYC Motor(1 record)
Jun 10, 202605:35 AM$368.00—$368.00Initial———Yesactive

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Specifications

Type

VESC Based
No
Cooling
Air

Electrical

Voltage Range
24–72V
Continuous Amps
80A
Peak Amps
100A
Max Phase Amps
200A

Motor Features

Regen Support
Yes
Drive Mode
FOC
Sensor Mode
Dual Mode
Field Weakening
Yes
Self-Learning
Yes
Dual Motor Support
No
Controller Pairing
No

Inputs

Throttle Support
Yes
PAS Support
Yes

Display

Supports Display
Yes
Requires Display
No
Protocols
ASI/Grin (ModBus)

Power Switch

Supports Power Switch
Yes
Requires Power Switch
No
Requires Pre-charge
No

Programming

Via Display
No
Via Phone
Yes
Via PC
Yes

Physical

Weight
1.02 kg
Dimensions (L×W×H)
125mm × 126mm × 49mm
IP Rating
IP55

Ports & Connectors

Battery Input2-position Screw Terminal Block
Power
PinWire colorFunction
1RedBattery +
2BlackBattery -
Motor Phases3-position Screw Terminal Block
Motor Phase
PinWire colorFunction
1YellowPhase A
2GreenPhase B
3BluePhase C
Hall Sensor
Hall SensorTemperature
PinWire colorFunction
1Red5V Power
2BlackGround
3YellowHall A
4GreenHall B
5BlueHall C
6WhiteMotor Temp
Signal / Comm
UARTPASBrakeThrottlePower SwitchCAN Bus
PinWire colorFunction
1No colorNone
2No colorNone
3WhiteUART TX
4Red5V Power
5PurplePAS Signal
6OrangeBrake Signal (Low)
7WhiteThrottle Signal
8Red5V Power
9OrangeE-Lock / Ignition
10GreenCAN Low
11YellowCAN High
12No colorNone
13GrayUART RX
14BlackGround
15BlackGround
16Red12V Power

Resources

Official ASI Page

Manufacturer Page<div class="calc-height pb-2"> <p>The BAC2000 is a high-power density compact Electric Motor Controller / Inverter. Units are optimized for the latest Lithium Ion Battery Technology and designed with the latest in Field-Oriented Vector Control (FOC) as well as ASI’s proprietary Adaptive Sensorless Start Algorithms. ASI Controllers feature auto-tuning and are capable of delivering up to 120% of a Motor’s rated maximum locked rotor torque without the need for complicated position sensors. The BAC2000 delivers an entry-level high-power controller for utility vehicles and related equipment.</p> <div class="buttons black"><a rel="noopener" href="https://support.acceleratedsystems.com/BAC6/tech_specs/mechanical_drawings/" target="_blank" class="btn asi--link">Technical Drawings</a></div> </div> <div class="p-hider"></div> <div class="tab-pane fade show active" id="power" role="tabpanel"> <table border="0" class="table mb-5"> <tbody> <tr style="height: 47px;"> <th class="dark-cell" style="width: 388px; height: 47px;"><strong>Nominal Input Voltage</strong></th> <td style="width: 407px; height: 47px;">24 to 72VDC</td> </tr> <tr style="height: 47px;"> <th class="dark-cell" style="width: 388px; height: 47px;"><strong>Peak Phase Current</strong></th> <td style="width: 407px; height: 47px;">200A</td> </tr> <tr style="height: 47px;"> <th class="dark-cell" style="width: 388px; height: 47px;"><strong>Continuous Electrical Output Power @ 20°C Ambient</strong></th> <td style="width: 407px; height: 47px;">2000W @ 48V</td> </tr> <tr style="height: 47px;"> <th class="dark-cell" style="width: 388px; height: 47px;"><strong>Motor Control Model</strong></th> <td style="width: 407px; height: 47px;">Direct Field-Oriented Control</td> </tr> <tr style="height: 47px;"> <th class="dark-cell" style="width: 388px; height: 47px;"><strong>Supported Motor Types</strong></th> <td style="width: 407px; height: 47px;">3-Phase Permanent Magnet</td> </tr> <tr style="height: 47px;"> <th class="dark-cell" style="width: 388px; height: 47px;"><strong>Supported Motor Sensor Types</strong></th> <td style="width: 407px; height: 47px;">Sensorless, 120° Electrical Halls, Sine/Cosine Encoder</td> </tr> <tr style="height: 47px;"> <th class="dark-cell" style="width: 388px; height: 47px;"><strong>Operating Ambient Temperature Range</strong></th> <td style="width: 407px; height: 47px;">-20 to 50°C</td> </tr> <tr style="height: 47px;"> <th class="dark-cell" style="width: 388px; height: 47px;"><strong>Inrush current limit</strong></th> <td style="width: 407px; height: 47px;">60A</td> </tr> <tr style="height: 47px;"> <th class="dark-cell" style="width: 388px; height: 47px;"><strong>Communication Protocols</strong></th> <td style="width: 407px; height: 47px;">TTL, CANBus, Optional BT</td> </tr> <tr style="height: 47px;"> <th class="dark-cell" style="width: 388px; height: 47px;"><strong>Inputs</strong></th> <td style="width: 407px; height: 47px;">3x Halls, 2x Digital, 4x Analogue</td> </tr> <tr style="height: 47px;"> <th class="dark-cell" style="width: 388px; height: 47px;"><strong>Outputs</strong></th> <td style="width: 407px; height: 47px;">Hall 5V, 5V, 12V, Low-Side Switch</td> </tr> <tr style="height: 47px;"> <th class="dark-cell" style="width: 388px; height: 47px;"><strong>Mating I/O Connectors</strong></th> <td width="283" valign="bottom" style="width: 407px;"><span>Molex 334716001 (6-pin)</span><br aria-hidden="true"><span>Molex 334721601 (16-pin)</span></td> </tr> <tr style="height: 47px;"> <th class="dark-cell" style="width: 388px; height: 47px;"><strong>Power Terminals</strong></th> <td style="width: 407px; height: 47px;"><span>5x M5-0.8 x 16mm</span></td> </tr> </tbody> </table> <p>&nbsp;</p> </div> <div class="tab-pane fade" id="qual" role="tabpanel"> <ul> <li>RoHS</li> <li>Engineered in Canada</li> </ul> </div> <div class="tab-pane fade" id="application" role="tabpanel"> <ul> <li>eScooters</li> <li>Off-road electric bikes</li> <li>eMoped</li> <li>Small utility vehicles</li> </ul> </div>

ASI BAC2000 - Manufacturer Page

Manufacturer PageOfficial ASI product page with specifications for the BAC2000 controller

Frequently Asked Questions

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