Current range

How far can I get with my Stromer?

The question of range is as old as (S)-Pedelecs themselves. To anticipate, there is no simple answer. Stromer has delivered various battery models with different nominal capacities and nominal voltages in its model range since 2009. The motors have also undergone an evolution. The torque and rated power have been increased. The Weight and the wheels were changed from 26" to 27.5" rims.

Stromer states the range at 'Effective range: making full use of e-bike power' Notes. [PDF]. And Stromer, like many manufacturers, publishes general information on the range of its S-Pedelecs.

Stromer stated in their 2013 model catalog that this was determined with a rider of 70 kg and a pedal sensor setting (torque sensor) of 30%.

As listed here under 'General', many parameters influence the possible range. If the elevation gain is reduced, the system weight is lower and the torque sensor is set to 80%, the range will certainly increase. If you have a lot of headwind, a lot of stops and goes, or it is winter, the range will decrease. Ultimately, it's a matter of experience and takes some time until bike and rider are a good team and you know roughly whether you're riding home or walking home.

The range figures should therefore not be taken at face value. As in the car industry, they are more of a theoretical nature, which can be achieved under certain conditions, but are usually not achieved in general driving practice. But it is not impossible.

The torque sensor setting:

This setting can be used to regulate the overall assistance across all drive levels. In the Omni app, this can be done under Configuration (second tab at the bottom, from left), in the Omni under: Menu > Bike > Rev. Sens.

The application for the top models ST5/ST7 differs slightly from the rest of the model range.

While 100 % sensor makes sense for the ST1, ST2 and ST3 for the maximum current driving experience, a setting of 80% is recommended for the ST5/ST7. This achieves roughly the same performance as the other models with a 100 % sensor.

To call up 100 % support for the ST5/ST7, you also have the so-called sport mode [S]. With this mode, the sensor value is always set to 100 %, regardless of the other settings.

Practical experience

My experience with an ST3 and new BQ983 battery is as follows:

In the Electricbikereview forum a somewhat older Consumption & range table for S-Pedelecs from Stromer. 

180 km walk...

Here is a route profile of the electric driver Misch Reding, driven in the Luxembourg Ardennes, where the range announced by Stromer is achieved. (Full post)

However, you probably sacrifice the Stromer driving pleasure, should only be 75 kg light, set the torque sensor to 30% and select drive level 1. The battery must also be virtually new. With the Stromer, you are therefore on the borderline of a biobike. Is that what you want?

And what about the ST7's new battery?

At the 'Stromer Universe Basel' on August 22, 2021, Stromer presented the ST 2022 (ST7) prototype with the new BQ1440 Wh battery. According to the brochure, 260 km should be possible. As 'Tomi Viiala' (then Co CEO of myStromer AG) explained in the Video mentioned above, the range drops to +/- 100 km when driving with full assistance (All In).

Feedback in the forums (as of 03/2023) does not quite confirm this range. At All In, it is said to be only 80-90 km. At level 1, the range is more realistic. The Stromer driver 'Stefan Scheer' reported on June 1, 2023 that he still had 46% of battery left after 161 km (of which 95% in stage 1) and 1,220 m of climbing.

There is also a Range test of YouTuber 'Black Max', who tested the ST7 on a winter's day on his work route of 70 km each way. To get straight to the point. The battery managed it, even if it got pretty tight.