The "Saddle Lift"

- increases the safety of e-bikes
- is based on a clearly identified need
- is backed by scientific evidence

Watch the introduction video

View selected research papers

Accident Analysis and Prevention

An extensive analysis of bike accidents and the corresponding development of the SOFIE bike focusing on a height adjustable saddle for safer mounting and dismounting.

Safety Science

An explanation why the number and severity of accidents are increasing and why getting on and off the bike plays a major role.

SWOV Fact sheet - Senior cyclists

Highlights the alerting increase of severe and fatal bike accidents with a specific focus on the elderly.

A better understanding of single cycle accidents of elderly cyclists

Gives a very good and detailed understanding about the severity level of single sided accidents which is widely underestimated.

Bicycling Stability

A very compelling thesis on “stability problems” of elder cyclists which includes an impressive amount of literature research; and the full background story on the SOFIE project.

... and there are many more high calibre academics involved in more related studies


Feldhaus-Technik GmbH
Thomas Feldhaus
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