4Wieler is a small but dedicated 4 wheel bike development and construction company. Located in Leiden in the Netherlands they build, market and sell the Solo, Duo and Cargo (= Bykkar) 4 wheel bikes. In the past Solo and Duo models were mainly sold to health care institutions and end users, mostly elderly and disabled people. Although this segment of the market is important, the bikes can also be used for many other purposes.

The bikes have a very good looking design and can be used e.g. for recreation and holiday for both the young and the old. Or for the transportation of cargo in old city centers with historic value. 4Wieler is now planning new models especially for these markets. In Leiden they will start a bike sharing project with the Duo models and rent them as well to tourists and visitors. In the near future they plan to expand the business to neighbouring countries and for that they are looking for partners.



Robert van Hees

Robert van Hees

Owner / Director

Want to know more? We are happy to help.

Stay updated, follow us on social media and subscribe to our newsletter

Nicolaas Beetsstraat 2A
3511 HE Utrecht, The Netherlands

Diese E-Mail-Adresse ist vor Spambots geschützt! Zur Anzeige muss JavaScript eingeschaltet sein!

PHONE: +31 (0) 15 202 6116

Due to Covid-19 (Corona-virus) the DCE-team is working from home, therefore this phone might not be answered.
Please leave a message with your phone number through our contact form on the left side of this page, and we’ll call you back as soon as possible!