Harley-Davidson is generally known for producing quality engines. However, one was prone to several issues related to the motorcycle's oil system.

Despite declining sales and revenue in 2025, Harley-Davidson has been the dominant American motorcycle maker for most of its long and illustrious history. Harley has produced a succession of engines ...

Harley-Davidson underperforms in Europe. Some of the EU's best-selling bikes are big tourers, like BMW's boxer twins, but Harley's models aren't found among them. In fact, despite bikes in general ...