Yes, Harley-Davidson motorcycles are known for their distinct idle vibrations. The level of vibration can vary depending on the specific model and its engine configuration, but it is generally a characteristic feature of Harley-Davidson motorcycles. The vibration is caused by a combination of factors, including the design and construction of the engine and the mounting system.
Harley-Davidson motorcycles typically use V-twin engines, which have two cylinders arranged in a V-shape. This engine configuration inherently produces more vibration compared to other engine designs, such as inline four-cylinder engines. The firing order and timing of the engine also contribute to the vibrations.
Additionally, Harley-Davidson motorcycles often utilize solid engine mounts rather than rubber mounts, which further transmit the engine's vibrations to the frame and the rider. This design choice enhances the traditional feel and character of the motorcycle but also results in more noticeable vibrations at idle.
The degree of vibration can vary from model to model and even between different engine displacements within the Harley-Davidson lineup. Some riders appreciate the vibrations as part of the authentic Harley-Davidson experience, while others may find them less desirable. In recent years, Harley-Davidson has been working on refining their engine designs and implementing various technologies to reduce vibrations while maintaining the desired character and performance of their motorcycles.