The heaviest engines for motorcycles are typically found in large cruisers and touring bikes. These motorcycles are designed for long-distance riding and often feature larger displacement engines to provide ample power and torque for comfortable highway cruising and carrying heavy loads.
The weight of an engine alone does not necessarily determine its performance or superiority. While a heavier engine may offer more power and torque, it also adds to the overall weight of the motorcycle, which can impact handling, maneuverability, and fuel efficiency.
Motorcycle manufacturers strive to find a balance between power, weight, and handling characteristics when designing their bikes. Different types of motorcycles, such as sportbikes, adventure bikes, or cruisers, have varying design priorities and engine characteristics to cater to specific riding styles and preferences.
For example, sportbikes tend to prioritize lightweight construction and high-revving engines to deliver quick acceleration and agile handling. On the other hand, touring bikes and cruisers prioritize comfort, stability, and low-end torque for relaxed cruising and long-distance riding, which often leads to larger, heavier engines.
Ultimately, the "best" engine for a motorcycle depends on the rider's preferences, intended use, and the specific characteristics they value, such as power, fuel efficiency, handling, or comfort. It's important to consider a range of factors beyond just engine weight when evaluating a motorcycle's performance and suitability for your riding needs.