a Shimano STEPS E6000 and E8000 drive systems
It is important to distinguish between two different Shimano STEPS drive systems, namely the classic E6000 and the new E8000 drive, which has been specially designed for e-mountain bikes.
b E6000
The compact, lightweight Shimano STEPS DU-E6000 drive offers a torque of 50 Nm. You can choose between 3 different drive modes (Eco, Normal & High). In the Eco mode, the battery provides a decent range of up to 150 km. There are several recommended tuning options for this drive.
c E8000
The E8000 is a completely redesigned, particularly powerful drive that has been specially developed for e-mountain bikes. The engine scores with an extremely low weight (less than 3 kg). The maximum torque is 70 Nm. The battery power of the E6000 has been increased from 418 Wh to 500 Wh. In addition, the display is no longer located in the middle of the handlebars (as with the E6000), but on the right-hand side in the triangle of stem and handlebar. You can choose between 3 support modes (Eco, Trail, Boost), which can be controlled via handy Firebolt gearshift levers, which should ensure a particularly harmonious shifting. For many experts, the system is now regarded as one of the very best MTB drives on the market - the driving experience should be extremely similar to that of conventional mountain bikes without an engine. With the Badass Box 4, the eMax Sensor and the eMax software, there are already several recommended tuning tools for this system.