Manual gears aren't the only way to manage changes in a journey.
The Air 28 Pro uses BAFANG's automatic two-speed system, while the Air 28 Ultra uses a three-speed H730 system. ADO lists 40 N·m of torque for the system and describes the automatic transmission as adapting to changing riding conditions.
For Manchester riders, this makes the transmission one of the key differences to consider when comparing the two versions.