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~ FREE SHIPPING ON ALL UK ORDERS OVER £50 ~ Tel: 01803 527833
~ FREE SHIPPING ON ALL UK ORDERS OVER £50 ~ Tel: 01803 527833

BAC4000 Motor Controller + Egg Rider V2 Display (Sur Ron / Talaria)

Original price £1,850.00 - Original price £1,850.00
Original price
£1,850.00 - £1,850.00
Current price £1,850.00
 Ships Monday 17th June (48Hr Tracked) 

The BAC4000 is a mid level high-power density compact Motor Controller (inverter) that is perfect for Sur Ron and Talaria electric bikes. These units are optimised for the latest in Lithium Ion battery technology and utilise 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 95% of a motors maximum locked rotor torque without the need for complicated position sensors.

EggRider is the fusion of an e-bike display with a mobile app, allowing you to enhance the performance of your e-bike ride. You can get your riding statistics and customise your riding profile.

EggRider Features

  • Street and Off-Road switch changes riding parameters on the fly
  • Data display : battery capacity percentage and voltage, speed, power, energy, efficiency, trip time and distance
  • Power assist level switch with physical buttons from the display.
  • Data rich Generate statistics of your trips with graphs using the mobile app
  • Configure motor/controller internal parameters


Input voltage range 30-86V
Battery current consumption Off = 0 A; Idle < 0.1 A; Max (est.) = 395 A
Peak phase current 430A
Peak Efficiency >95%
FET PWM switching frequency range  10 kHz to 17 kHz (application and firmware dependent)
Maximum recommended motor electrical frequency 10% of switching frequency
Minimum recommended motor phase to phase inductance  20 μH
Supported motor types  3-Phase surface permanent magnet motors.
Input capacitance 2.01mF
Thermal cutback The controller linearly reduces maximum output current when the internal
controller temperature is above 80ºC. Complete cutoff occurs at 100ºC, the
control board over-temperature threshold.
Water ingress protection IPX5 with fully populated connectors
Operating ambient temperature range -20 °C to 50 °C

Download Technical Specification Sheet