German Motorcycle Resources
Information on German Vintage, Pioneer & Veteran Motorcycles. Covers touring, sports and racing machines including pre-war and early post-war eras
Automobile and Motorcycle Association, Germany. Their site claims that it is the world's largest motorcycle forum.
Documents vintage motorcycles made in Nuremberg.
Large database of German manufacturers.
Masses of information on the JLO twin cylinder engines fitted to a good many European marques. The site went off-line in 2019, but a fairly complete archive exists at the Wayback Machine.
Motorräder aus Leipzig
Documents vintage motorcycles made in Leipzig including several ongoing restorations.
Literature on many German marques.
FB Group Motorräder, Zeitdokumente , Fotos
Motorräder, Zeitdokumente , Fotos
Russian site which borrows extensively from authoritative sites.
Horst Mennig submitted information on a previously undocumented German marque
DKW Motorrad Club has a wealth of information, very well presented.
Maico at OzVMX Forum
Maico FB Group
A comprehensive and well presented site on Triumph Werke Nurnberg
TWN Zweirad IG
TWN Zweirad IG
Large collection of technical information collected over three decades.
Photographs made at the DKW Motorrad Club e.V.
German translations (word only, not phrase)
by Oxford University
Not exactly an honourable mention, but a source for many early posts here which have for the most part been verified and corrected, or deleted:
German motorcycles, microcars and sidecars - JF