Well Major, don't believe everything you read on the net. There is no such word in Norwegian, it's just a misspelling of the German term. So feel free to correct the error, those who can (and care). I do believe Rolf has been told by now...
The Norwegian word for "Kettenkrad" would be "beltemotorsykkel", which can be confusing, as it is also the legal term for a snow scooter. So we'd better agree on "Kettenkrad"...