I know what is meant by "softtail" and "bagger", but what does the word "dyna" refer to? Is it a shortened form of an older harley word? How did this name come to describe a group of harley models? Anyone here a historian? Or a linguist?

 

Dyna-from the Greek word dynamis, as in dynamic, dynamo, dynamite, etc. It means POWER. And it is!

 

You sir, are a cunning linguist.

 

Several long threads on here about this. Try using the search. To summarize all of them though...no one really knows, but everyone will do their best to guess at it or joke about it.

 

...and I enjoy doing it!!!--Oh! My bad! You said "cunning linguist"!

 

in my best austin powers imitation "ooooh behave"

 

I thought it came from an old Frank Zappa song, "Dynamo Hum".

 

means girlie bike...

 

I fixed that for ya

 

He's right!
Mine is exactly that, I am but the chauffeur of the;
"el caballo de hierro rojo"
which only rides las chicas.