Switzerland Support
Until May 2025, there was a way for end customers to reach Stromer. Support requests were also answered. With Setting the unofficial support email address info@stromerbike.com is this no longer possible. myStromer AG communicated this in this letter.
The FAQ The website does not provide sufficient information for many specific questions. This leaves the dealer as the only point of contact, or forums, Facebook groups, and this website as sources of information.
Contact Information / Feedback?
A dedicated feedback channel is not offered. In Imprint wird ebenfalls info@stromerbike.com als Kontaktadresse angegeben. Schreibt man diese an wird eine automatisierte Antwort versendet. Die Adresse wird intern wohl passiv gelesen, ein Feedback ist aber eher unwahrscheinlich, zumindest was meine Erfahrung angeht. Eine E-Mail meinerseits mit einem Feedback (Fehler in einer Bedienungsanleitung) wurde nicht beantwortet.


US and Canada customers
Stromer is withdrawing from the US/CA market as of November 2024. For customers there are specific information in the FAQ.
Die Kontaktadresse gemäss Bedienungsanleitungen wäre serviceusa@stromerbike.com. In der FAQ wird diese aber nicht bestätigt. Es wird lediglich auf die lokalen Händler verwiesen.
Warranty work
Garantiearbeiten kann und sollte jeder Stromer-Händler ausführen. In der Praxis werden aber Kunden, welche den Stromer nicht beim spezifischen Händler gekauft haben, oft abgelehnt oder saftige Werkstattkosten aufgerechnet. Dies obwohl Stromer für Garantiearbeiten meist Vergütungen anbietet.
Ersatzteile unterliegen den allgemeine Warranty conditions.
CoC – Certificate of Conformity – Wo bekomme ich dieses?
The Certificate of Conformity (CoC) ist die Betriebserlaubnis des Stromers. Braucht man eine neue CoC kann dieses beim Stromer-Händler bestellt werden. See die myStromer-FAQ.
Siehe auch: FAQ – ,Änderungen am Stromer – Homologierung/Konformitäts- oder Typengenehmigung (CoC)‘
Batterie-Zertifikat | UN38.8 certificate and MSDS (SDS) – Wo bekomme ich diese?
Für den Transport (Gefahrgutklasse 9 / UN 3480 / UN 3481) oder die Zollabfertigungen eines Stromer-Akkus benötigt man u.a. in der EU die Prüfzusammenfassung (UN38.3 Test Summary Report) und das Produktsicherheitsdatenblatt (Material Safety Data Sheet = MSDS) im PDF-Original.
Mögliche Bezugsquellen für die Zertifikate (UN38.3 & MSDS) für eine Stromer Li-Ion Batterie Model ST1306AC (13NCR18/65-6) sind:
- Stromer AG (myStromer AG / Official Support):
- Stromer stellt das offizielle UN38.3-Zertifikat und MSDS für Fachhändler, Speditionen und Endkunden auf Anfrage direkt aus.
- Contact: support@stromerbike.com oder über das Stromer Dealer Portal.
Achtung: Diese Adresse wird von Stromer im Hintergrund geführt und ist keine offizielle Endkunden-Supportadresse. Eine Antwort ist eher unwahrscheinlich.
- Stromer Fachhändler (Velohändler):
- Autorisierte Stromer-Händler haben Zugriff auf das Händlerportal (myStromer B2B) und können UN38.3 Test Summaries sowie MSDS für alle BQ983/ST1306AC-Akkus direkt herunterladen.
- Direkte Anfrage bei TD HiTech Energy (service@htenergy.com.tv)
- mit exakter Modellbezeichnung ST1306AC / 13NCR18/65-6. Eine Antwort ist zwar möglich aber eher unwahrscheinlich. Die auf der Homepage unter Certificates aufgeführten Zertifikate sind nicht spezifisch genug.
- Download auszugsweise / Prüfbericht-Verzeichnis:
- Bei Fahrrad XXL sind Auszüge (der Intertek-Prüfbericht) für das Modell ST1306AC im Medienbereich hinterlegt.
Recall of 6500 WREN Suspension Forks (12/4/2025) - Risk of breakage!
Communication from myStromer AG
Stromer is voluntarily recalling approximately 6,500 front fork assemblies of the brand ’WREN« that were installed in the speed pedelecs ST3, ST5, and ST7. The steerer tube can fatigue prematurely and develop cracks, break, or detach during use. This can lead to a loss of control over the bicycle, posing a risk of falls and injuries.
Stromer has received 15 reports of steerer tube failures, including eight cases involving customer injuries.
Affected customers will also be informed about the recall by registered mail.
👉 Recalls FAQ
👉 Check if you are affected by the recall!
Special email for inquiries: safety@stromerbike.com
See also FAQ - Spare parts - Where can I get originals?
Hello – I ordered a st1 v1.1 to replace the display for my st1 sport (-2018) bike. This is the display that was suggested for my model on the German strohmer website. The bike’s harness connector has 5 pins in a larger metal shell, while the new display’s cable connector has only 3 pins in a smaller shell. Is there an adapter available ?
I would be happy to receive the product reference and vendor.
Hi Denise
Die EU – ST1 V1/V1.1 haben standard mässig ein Dsiplay am Lenker mit zwei Anschlusskabeln. Das 3-polige ist für die Funktion des Bremslichts und die Zuschaltung der Rekuperation zuständig. Das 5-polige ist für die Steuerung, u.a. für den Controller im Motor, verantwortlich. Die Anschlussbelegung kann man here nachschauen. Das Diplay kann nach wie vor here be purchased.
Es gibt aber eine Ausnahme!
Das eben genannte Display ist nicht kompatibel mit den Twist-Throttle-(Gasdrehgriff)-Stromern, die vor 2013 kurzzeitig in den USA verkauft wurden. Die hatten ein anderes Display. Das Display ist meines Wissens nicht mehr lieferbar.
Für eine genaue Auskunft würde ich mich an den Stromer Flagshipstore in Oberwangen wenden:
Freiburgstrasse 798
CH-3173 Oberwangen
shop@stromerbike.com
+41 31 848 23 00
Hi I have approached my supplying dealer here in the UAE and requester the UN38.3 certificate and MSDS sheet for my Stromer ST5 BQ983 battery. The dealer has requested these from yourselves but has to date received no response. I need these to ship my bike home. Can you guide me to where I can obtain these mandatory shipping documents. Your support would be much appreciated because this is holding things up.
Hi David The website stromer-tech.info is independent of myStromer AG and is operated on a private basis. There is no connection to myStromer AG.
Unfortunately, I can only offer a suggestion regarding this specific question.
Send an email to info@stromerbike.com, describe your problem, and mention that your dealer (please provide the name) has not yet received a response from myStromer AG. It’s not certain whether you’ll receive a reply. If not, your dealer will need to contact Stromer again. As a Stromer dealer, he should have internal contacts at Stromer whom he can reach out to.
For more Informations see as well: Contact and Contact Person for Customers
Good luck!
Admin
Hello dear Stromer team,
I purchased a used Stromer ST5.
Unfortunately, I am unable to create an account in the Stromer Omni App to re-register the bike to myself. I always get error 403. An alternative email address didn't solve the problem either. As of today, there's a new error: Captcha shows an error. Unfortunately, nothing more.
When one dealer was asked for help (3 were asked, 1 replied by email), it showed that no one was willing to help. That's not a good advertisement...
Can you help?
Thanks and
Sincerely
Look at the article here on the page:
Link 1
A 403 Forbidden error occurs when the server intentionally blocks access to a specific URL, even though the page exists and the request was submitted correctly. This can be caused by missing access rights, blocked directories, incorrect index files, or server security rules.
And what can I do now to get an account opened for me?
Is there a way through the homepage?
Latest variant: Oooops5.
Is it possible for you to open an account for me?
Thank you
The website stromer-tech.info is an independent site not affiliated with myStromer AG and is operated on a private basis. There is no connection to myStromer AG. Unfortunately, I cannot answer or process support requests, but can only share experiences and tips.
Website des Stromanbieters beschrieben. Page described (using the Omni App). If you have any problems with registration, you can find them on the Page Watch or read the linked Stromer FAQ articles and videos. If that doesn't help, your only option is to go through an authorized Stromer dealer.
Hello Stromer friends!
I have just updated my Stromer firmware (SUI FW 4.5.1.3), and have activated the new Pinion gearbox feature for automatic shifting (New firmware "V 1.12.1" for Pinion Smart.Shift).
It took me a while to find the right cadence setting for downshifting into a corner that matched my riding style. I found the description in the OMNI menu about the cadence setting wasn't very clear in regards to what adjusting the setting would do (delay or speed up the shift)
Now that I have figured it out I am loving the option to ride an "automatic" bicycle!!!
I would like to make a suggestion about a future upgrade.
It would be really great to be able to set separate settings for down and up shifting.
Once I have the downshift cadence set so that the bike shifts at the right speed when I brake, but then it is too slow for up shifting as I pick up speed, it would great to be in a higher gear faster.
It would be awesome to have second option in the menu to set the cadence for upshifting separate from the current option that has the same cadence setting for both.
In summary, upshift and downshift each with their own cadence settings.
Thank you for your time and keep up the great work, riding my Stromer is always a highlight of any day!!!
Paolo
Hello Stromer Team,
I need a pedal sensor disk as a spare part for my personal Stromer ST1 built in 2012, where can I order this from?
Thank you very much
VG
Stefan Svejkovsky
What is a pedal sensor disk? Do you mean the TMM sensor in the right dropout?
Otherwise: Stromer spare parts can be purchased in various online stores: Look here on the page.