An amazing piece of German tech that had a 3 cylinder motor mounted in the FRONT WHEEL! Motor and trans were both up front the spokes were actually cooling fins! Was captured at the end of WW2 and is on display here in the U.S.
you can see it on facebook page RIDING VINTAGE
A-Two
Favorite Answer
no
and no link either
try
https://www.google.co.uk/search?q=killinger and freund motorcycle wikipedia&oq=Killinger and freund&aqs=chrome.3.69i57j0l5.4112j0j7&sourceid=chrome&espv=210&es_sm=122&ie=UTF-8
you emailed me but yahoo is broken so i cant answer - i think it clever that it fits all within an enlarged wheel - i think it was a really stupid thing to do and the handling of the original would stop it going into production (obviously)