The 18-horsepower, 250cc, 1961-1966 BMW R27 "Thumper"
Photographs copyright © Jeff Dean.

This is a 1964 250cc BMW R27.
Click on this image to go to my BMW R27 FAQ.

This is a Dover white 1966 250cc BMW R27.
A small number of R27s were imported in this
color.

Here is the cover of a BMW R27 sales brochure from the 1960s.
Go to my R27 fact sheet
for specifications.