The Producers

BMW R75, as that is what the Wehrmacht used during WWII, and the characters are a spoof on the Nazis. That doesn't necessarily mean that the motorbike really is an R75... It's definetely post-war and not in military-trim. By the way: the Wehrmacht have used all kinds of motorbikes, they could get (resp.requiring), except bikes from the 20ies and small ones (less than 250 ccm, but I'm not sure about the exact engine-size). it's post war Earles front fork appear first on R 50 & R60 in 1955 this one as the optionnal big capacity gas tank so it's not a 250 side car is Steib TR500

definetly not a R75 military, its a R 50 or R60

Honda...

Nope, Yamaha YCS1 1967ish http://www.ukwheels.com/motorbikes.asp