Ver. 4.3.0

■AUTO SHIFT has been updated.
・ More precise gearshift control for AUTO SHIFT while pedaling that responds to changes in terrain and speed
　- Better gear shifting timing during acceleration.
　- Optimal gear shifting timing for each assist setting.
　- Holds manually shifted gear position in AUTO SHIFT mode, allowing you to continue pedaling in the appropriate gear
　- Self-learning has been added to the AUTO SHIFT function of internal shifting units
・ Improved shifting response for Automatic FREE SHIFT in aggressive riding
　- Improved response to rapid deceleration, achieving faster shifting to a lower gear
■ New functions have been added to the assist settings.
・ The "assist carry over function" has been added to the assist settings. This 3-level selectable function allows you to select the duration that assist continues after pedaling stops.*
・ The "assist cutoff function" has been added to the assist settings. This 3-level selectable function allows you to select when the assist cutoff starts near the maximum speed limit.*
・ An aggressive assist character has been added to the assist settings. The characteristics of the existing assist character Lv15 have been changed to be more aggressive.*
*These settings can be changed on E-TUBE PROJECT Professional ver. 5.3.2. If you wish to make changes, please consult your place of purchase or a distributor. For E-TUBE PROJECT Cyclist, these settings will be available in the version after ver. 5.3.2.
■ Others
General bug fixes.

Ver. 4.2.3

The firmware will be updated but it does not affect the use of DU-EP801.

Ver. 4.2.2

Bug fixes for the warning detection function.

Ver. 4.2.1

General bug fixes.

Ver. 4.2.0

-The issue where incorrect error codes are displayed has been fixed.
-General bug fixes.

Ver. 4.1.1

General bug fixes.

Ver. 4.1.0

■ Changes
- Cadence range settings of climbing responsiveness for shift timing in AUTO SHIFT mode has been expanded.
- System operations at low battery level have been improved.
- The CAN port function has been enabled.
- The maximum output range of The drive unit has been extended.
*Depending on the bicycle settings or battery specifications, the output range may not change even after the update.

Ver. 4.0.2

General bug fixes.

Ver. 4.0.1

Firmware released.