What makes a Harley so loud?
What makes a Harley so loud?
The secret of the unique sound of a Harleys lies in the design of the Harley-Davidson V-Twin two-cylinder engine. The pistons in most two-cylinder horizontal engines are timed to fire alternatively. This means one piston fires on each revolution of the crankshaft, i.e., every 360 degrees. Mar 25, 2020