You can contact me in writing:


Reinhard Mueller

Aquinostrasse 7-11

50670 Koeln

 or eMail me using this contact form.

Data protection declaration

Responsible for the purposes of the General Data Protection Regulation (DSGVO) for the website is:
Reinhard Mueller
Aquinostrasse 7-11
50670 Köln
To contact this person, please use our online contact form.
If you contact us via the online contact form or by e-mail, we will save the information you have provided in order to answer your request and to ask possible follow-up questions.

1. General Information
The operator of this website takes the protection of your personal data very seriously. Your personal data will be treated confidentially and in accordance with the statutory data protection regulations and this privacy policy.
If you use this website, various personal data will be collected. Personal information is information that personally identifies you. This Privacy Policy explains what information we collect and what we use it for. It also explains how and for what purpose this happens.
For security reasons and for the protection of the transmission of personal data and other confidential contents (for example, orders or inquiries to the responsible person), this website uses an SSL resp. TLS encryption. You can recognize an encrypted connection by the string 'https: //' and the padlock icon in your browser bar.
Please note that data transmission over the Internet (for example, when communicating via e-mail) may have security vulnerabilities. A complete protection of the data from access by third parties is not possible.

2. Data collection when visiting our website
In the case of an informative use of our website, ie if you do not register or otherwise provide us with information, we will only collect data that your browser transmits to our server, the so-called server log files. When you visit our website, we collect the following information that is technically necessary for us to display the website:

  • Information about the browser type and the used version of your browser
  • The operating system you are using
  • Your internet service provider
  • Your IP address
  • Date and time of your access
  • The amount of data sent in bytes
  • Websites from which your system will reach our website
  • Web pages accessed by your system through our website

The processing is carried out in accordance with Art. 6 para. 1 lit. f DSGVO based on our legitimate interest in improving the stability and functionality of our website. A transfer or other use of the data does not take place. However, we reserve the right to retrospectively check the server logfiles should concrete evidence point to unlawful use.

3. Cookies
In order to make the visit of our website attractive and to enable the use of certain functions, we use so-called 'cookies' on various pages. These are small text files that are stored on your device. Some of the cookies we use are deleted after the end of the browser session, ie after closing your browser (session cookies). Other cookies remain on your device and allow us or our affiliate (third-party cookies) to recognize your browser on your next visit (persistent cookies). If cookies are set, they collect and process individual user information such as browser and location data as well as IP address values on an individual basis. Persistent cookies are automatically deleted after a specified period, which may differ depending on the cookie.
In some cases cookies serve to simplify the ordering process by storing settings (for example, remembering the contents of a virtual shopping cart for a later visit to our website). Insofar as personal cookies are also processed by individual cookies implemented by us, the processing is carried out in accordance with Art. 6 para. 1 lit. b DSGVO either for the execution of the contract or in accordance with Art. 6 para. 1 lit. f DSGVO for the protection of our legitimate interests in the best possible functionality of our website as well as a customer-friendly and effective design of the page visit.
Please note that you can set your browser so that you are informed about the setting of cookies and individually decide on their acceptance or can exclude the acceptance of cookies for specific cases or in general. Each browser differs in the way it manages the cookie settings. This is described in the Help menu of each browser, which explains how to change your cookie settings.
Please note that if you do not accept cookies, the functionality of our website may be limited.

4. online contact form
If you send us inquiries via the contact form, your details from the inquiry form, including the contact details you provided there, will be stored in order to process the request and in case of follow-up questions. We will not share this information without your consent.
The processing of the data entered into the contact form is therefore exclusively based on your consent (Art. 6 (1) lit. DSGVO). You can revoke this consent at any time. For this an informal message by email to us. The legality of the data processing operations carried out until the revocation remains unaffected by the revocation.
The information you provide in the contact form will remain with us until you ask us to delete it, revoke your consent to storage or delete the purpose for data storage (for example, after your request has been processed). Mandatory statutory provisions - especially retention periods - remain unaffected.

5. Google reCAPTCHA
On our website we use the reCAPTCHA feature of Google LLC, 1600 Amphitheater Parkway, Mountain View, CA 94043, USA ('Google').
With reCAPTCHA it is checked whether the data entry in the contact form on our website is done by a human or by an automated program. To do this, reCAPTCHA analyzes the behavior of the website visitor based on various characteristics. This analysis starts automatically as soon as the website visitor visits the website. For analysis, reCAPTCHA evaluates various information (e.g., IP address, web page visitor's visit time on the web page, or mouse movements performed by the user). The data collected during the analysis will be forwarded to Google.
The reCAPTCHA analyzes are completely in the background. Website visitors are not advised that an analysis is taking place.
Data processing takes place on the basis of Art. 6 para. 1 lit. f DSGVO. We have a legitimate interest in protecting our web sites from abusive automated spying and SPAM.
For more information about Google reCAPTCHA and Google's privacy policy, please visit the following link:

6. Processing data (customer and contract data)
We collect, process and use personal data only insofar as they are necessary for the establishment, content or modification of the legal relationship (inventory data). This is done on the basis of Art. 6 para. 1 lit. b DSGVO, which allows the processing of data to fulfill a contract or pre-contractual measures. We collect, process and use personal data on the use of our website (usage data) only insofar as this is necessary in order to enable or charge the user for the use of the service.
The collected customer data will be deleted after completion of the order or termination of the business relationship. Legal retention periods remain unaffected.

7. Submitting data when ordering on this website
We only transfer personal data to third parties if this is necessary in the course of the contract, for example to the bank responsible for processing the payment or to a logistics company (eg DHL Paketversand).
A transfer of your data to third parties without explicit consent, such as for advertising purposes, does not occur.
The basis for data processing is Art. 6 para. 1 lit. b DSGVO, which allows the processing of data to fulfill a contract or pre-contractual measures.

8. Duration of storage of personal data
The duration of the storage of personal data is based on the respective legal retention period. After the deadline, the corresponding data are routinely deleted, if they are no longer required to fulfill the contract or to initiate a contract and / or on our part no legitimate interest in the re-storage persists.

9. Your right to information, blocking and deletion of your personal data
You have the following rights at any time within the scope of the applicable legal provisions:

  • a free right to information pursuant to Art. 15 GDPR concerning your personal data processed by us.
  • a right to immediate correction according to Art. 16 GDPR concerning incorrect data and / or completion of your incomplete personal data stored by us.
  • a right to cancellation according to Art. 17 DSGVO of your personal data if the conditions of Art. 17 (1) GDPR are met. However, this right does not exist, in particular, if it is necessary for the assertion, exercise or defense of legal claims.

10. Change of our data protection declaration
In order to ensure that our privacy policy always conforms to current legal requirements, we reserve the right to make changes at any time. This also applies in the event that the privacy policy has to be adjusted due to new or revised services. The new privacy policy will then take effect on your next visit to our offer.

If you have further questions, you can always contact us via our contact form.




AWD e-fatbike 'Sandkatze' MMI details

The MMI (Man-Machine-Interface) components of the Sandkatze consist of 4 seperate units:

1 - the Thrigger

The Thrigger (Throttle and Trigger) is a trigger like device that acts as a throttle. With the Thrigger, you control the speed of the motors. The unit is hall sensor based and has 2 carbon fibre leaf springs that can be individually tuned to allow you to obtain your optimal feel whilst riding on throttle sensitive sections of a track.

2 - the Tworque Wheel

The Tworque Wheel (Twist and Torque) is a potentiometer with a silicone wheel for excellent grip. With the Tworque Wheel, you control the power of the motors.

3 - the CA3-CX Monitor

The CA3-CX is a special edition Cycle Analyst V3. With the CA3-CX, you can control and monitor the performance of your vehicle. The CA3-CX is fully programmable via your PC.

4 - the Auto-PAS function

The Auto-PAS function is an option that can be realised with the CA3-CX. You can control your vehicle with the pedal sensor. Allows for a relaxed hands-free riding.




Press Release


e-bike-technologies releases AWD (All Wheel Drive) e-fatbike

Cologne, Germany, 1 May 2018: e-bike-technologies is proud to announce the release of their AWD e-fatbike 'Sandkatze'.

Established in 2009, e-bike-technologies specialises in connectors, cables and wiring harnesses for e-bikes. The company's focus is on the development and manufacture of MMIs (Man-Machine-Interfaces) for e-bikes operating in extreme environments.

The 'Sandkatze' AWD e-fatbike is the result of experience and innovation. Each vehicle is built to the customers specification, and can be fitted out to suit individual applications.


AWD e-fatbike 'Sandkatze' Technical Data and Specifications


Rigid 4130 Chrome-Molybdenum TIG welded steel frame with 190 mm symmetrical rear end. 11 mm wide dropouts. Bottom bracket width is 132 mm for press-fit 41 mm bottom bracket shell. Headtube inside diameter is 44 mm. Brake caliper mounting plate is 51 mm for IS disc mounts. Seatpost diameter is 30.9 mm, Seatpost clamp diameter 33.1 mm. Powdercoated with RAL color of your choice.

Rigid 4130 Chrome-Molybdenum TIG welded steel fork 150 mm wide with 11 mm wide dropouts. Brake caliper mounting plate is 51 mm for IS disc mounts. Powdercoated with RAL color of your choice.

26“ x 100 mm wide alloy rims with 32 holes. Powdercoated with RAL color of your choice. 4.8“ wide tyres.

2 x BLDC motors with 32 magnet, 16 pair pole motor, 120 degree, 12 turn low speed extra torque motors with hall sensors. Internal 5:1 planetary composite gears with 170 Nm clutch. Internal speed and temperature sensors. IP66 rated alloy motor housing, black anodised.

2 x 13S 6P Panasonic NCR18650GA cells with 2 x 40 A (continous) BMS. Capacity 2 x 19.8 Ah. Alloy battery case with Aclacell padding and integrated controllers 2 x 40 A. IP66 rated alloy battery housing, black anodised.

Electrical System
IP66 rated, fully enclosed electrical System with HIGO connectors. Cycle Analyst CA3-CX freely programmable master control system.

Thrigger speed control. Tworque torque control. Optional Auto-PAS System. AVID Elexir 9 hydraulic brakes. 9-speed Shimano XT gearing.

Top speed – about 32 kmh
Range – about 120 km
Weight – about 40 kg

Price starts at USD 24 000 depending on components used
Delivery time about 9 to 12 months