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Bafang pedal settingsLink

Accessible from menu Bafang Pedal

ButtonsLink

Initialize - Reads all Bafang Basic/Pedal/Throttle settings at once. After this procedure both Road/OffRoad would have identical settings.

Road or OffRoad - switch between profiles.

Read controller - reads controller Pedal settings.

Info - provides information for the Bafang switch mode.

Write - writes the Pedal settings to controller. If the operation is successful it updates the settings on the display as well.

BASICLink

Designated assistLink

The value of the assist power level.

If set to Display command the assist level shown on the display would be considered.

Disable pedal assistLink

  1. Set Designated Assist to 0
  2. Configure Assist Levels in Bafang basic settings page
  3. For Assist 0 set Limited Current(%) = 0 and Limited Speed = 0. In some cases value 1 should be set
  4. Your Pedal assist should no longer work

Enable pedal assist - PAS dependentLink

  1. Set Designated assist to Display Command
  2. Configure Assist Levels in Bafang basic settings page
  3. Set desired values for Limited Current(%) and Limited Speed for Assist 1 - 9
  4. Your Pedal assist should be limited based on the PAS level you see on display

Enable pedal assist - always max powerLink

  1. Set Designated assist to 9
  2. Configure Assist Levels in Bafang basic settings page
  3. For Assist 0 set Limited Current(%) = 100 and Limited Speed = 100
  4. Your Pedal assist should work the same (speed and current limit) no matter what PAS level you see on display

Speed limitLink

The value of the speed limit.

If set to Display command the value from Max Speed Road or Max Speed OffRoad from Display settings page will be used.

Start current(%)Link

The initial percentage of current delivered. This parameter is vital for not killing the controller. The lower the Start Current, the less power is directed to the PAS system on startup. This reduces strain on the controller and the drivetrain when starting from a standstill, particularly in a high gear. A value of 100% will result in peak draws well over 1000W. Lower values produce a smoother acceleration.

Keep current(%)Link

The percentage of current that is maintained at a certain rate of pedaling (cadence). It is the percentage of the current limit set per each level of PAS.

E.g.: For a 50% current limit set for level 5, if keep current is set to 70%, the current limit will drop to 35% while pedaling faster (at a higher cadence), but will increase back to the level's current limit once cadence drops. The pedaling cadence value can be modified by changing the current decay setting.

ADVANCEDLink

Pedal typeLink

Options

  • None
  • DH-Sensor-12
  • BB-Sensor-32
  • DoubleSignal-24

Slow-Start modeLink

Controls how quickly the power ramps up.

Startup degree (Signal No)Link

The number of sensor steps before startup commences. The maximum accepted value is 20 (24 represents a full pedal revolution). Too low a value causes the motor to start with minimal pedal movement. Does not work correctly with values of 0 or 1.

Work mode (Angular Speed of pedaL/wheel *10)Link

Adjusts the amount of power applied per pedal rotation. A higher value increases the power applied per rotation, which may affect peak power in PAS operation. Changing this setting has little noticeable effect; it is recommended to leave it at its default value.

Time of stop (x10ms)Link

This affects how quickly the drive stops after pedaling ceases. Setting it to 0 disables the PAS system. A value of 25 is generally too high. Values below 5 also disable the PAS. A value of 5 is recommended, especially when using the PAS system without e-brakes.

Tips

Some people report that setting this lower (as low as 5) may affect the startup delay on the throttle If you set this less than 10 on the v2 of the BBS02 controllers then your PAS will not work properly at all. On the older BBS02v1 controllers and the BBSHD controllers you can set this as low as 5 before you start having issues with the PAS

Current decay(1-8)Link

Determines how high up the pedal cadence rpm range it starts to reduce power, 8 being the highest. There is no detail on actual rpm speeds for the Current Decay setting. The lower this setting is the sooner the drive unit will start cutting back on the power as you pedal faster.

Stop decay (x10ms)Link

The amount of time the decay system takes to cut after pedaling stops.

Last update: April 23, 2026