When considering what model Harleys are most important, most riders unsurprisingly think the bike in their garage fits the bill.

But historically, some are more important than others. And with more than a century of building bikes under its belt, the Motor Company has made plenty of models which warrant consideration, from Knuckleheads to Panheads to Sturgis Low Riders. Listen close, and you can already hear the arguments of their various defenders. 

And while they might hold water at the local saloon, I’m going to take a look at the big picture. What model hog (or sporty) has had the most impact? The timeless classics? The traditional-looking, but technically advanced current models? Read on and find out why!