In addition to the
Spagthorpe Motorcycle Company's own factory racing team, there existed
several privateer racing teams who in their own special ways contributed
to the Spagthorpe Racing legend.
Belgium: The Tervuren Brothers
Belgian brothers Grönendäl,
Läkenois, and Malinois Tervuren
raced Spagthorpe Weimaraners
during the 1920s.
Germany
Leon Berger
raced various Spagthorpe models
during the 1930s.