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The ASI BAC855 kit for the Bafang BBSHD, hand-built and programmed by Bafanger Services, is a highly regarded upgrade for e-bike enthusiasts aiming to significantly enhance the performance of their mid-drive motors. This kit replaces the stock controller with a more powerful and fully programmable unit, unlocking substantial power output and extensive customization options.

A key feature of this kit is its broad battery voltage compatibility, supporting setups from 48V to 72V. This flexibility allows riders to choose a battery configuration that best suits their desired range and power output. With these kits, users can experience a dramatic increase in power, delivering up to 5000W, and the motor can achieve internal operating speeds of up to 12000 RPM. This transforms the BBSHD into a much more capable motor, especially for demanding off-road conditions or when carrying heavier loads. A significant technical advantage of these controllers is the inclusion of field weakening capabilities. This advanced feature allows the motor to operate effectively at speeds beyond its nominal RPM by reducing the magnetic field, which is crucial for achieving higher top speeds, particularly on flat terrain or descents.

A key advantage of this kit, provided by Bafanger Services, is the ability to program various parameters via a dedicated app or interface. This allows riders to precisely tailor the motor's characteristics, including current limits, throttle response, pedal assist levels, and the degree of field weakening, to perfectly match their individual preferences and riding style. The fact that these kits are hand-built and programmed by Bafanger Services suggests a meticulous approach to quality and performance tuning.

While the installation typically requires some technical aptitude and wiring knowledge, the benefits in terms of raw power, fine-tuned control, and extended speed range make it a highly worthwhile investment for those seeking to maximize their BBSHD's potential. It is particularly favored by riders who wish to push their e-bikes beyond typical street legal limits or those who demand the most aggressive and responsive performance from their setup.

Customization and Ordering Process: These kits can be extensively customized to meet individual requirements. This includes tailored motor tuning for specific power delivery (e.g., more torque or higher top speed), precise programming for your exact battery voltage and discharge capabilities, and custom-made wiring harnesses to ensure seamless integration with your bike's existing components. You can also discuss display options and compatibility with other accessories.

To order a customized kit and discuss the process and pricing, please message Bafanger Services directly. This allows for a personalized consultation to ensure the kit is perfectly tuned for your specific e-bike setup and riding preferences.