Another bike that sure made me think of pure muscle,back in the 60's was 105 inch PanHead Chopper that was cruising around here in Maine looking for boys to play with.I have been hooked on Strokers ever since I saw that thing beat an 88 inch Sportster.That thing made windows rattle.

 

When you use the word "original" think you really need to look back to the 1920's or before as Grunt said... there were some incredible iron goods and engine sizes and speeds being built then!!