What Does Harley Cubic Represent?
4 Answers
Harley cubic represents the maximum displacement of the cylinder and piston during one power stroke. Displacement: A specialized term in hydraulic transmission, referring to the volume of fluid inhaled or discharged per stroke or cycle. Automobile displacement is an important parameter for measuring a vehicle. Some domestic cars may not have the model number displayed on the rear, but their displacement is usually indicated on the body or rear. Differences in automobile engine displacement: Maximum speed varies: Different displacements result in different maximum speeds achievable by the vehicle, also affecting the car's performance when fully loaded on a good level road. Acceleration capability differs: Different displacements lead to variations in acceleration time, performance, and distance.
As a motorcycle enthusiast who frequently modifies bikes, I think 'Harley Cubic' likely refers to a special nickname for engine displacement. In Harley culture, people are accustomed to using cubic inches to denote engine size—for example, 88 cubic inches translates to a 1442cc engine. However, some newer riders might create their own terminology, so 'Harley Cubic' could be a nickname for a custom-built engine or a specific specification kit introduced by a tuning shop. I've seen many owners give unique names to their modified 113-cubic-inch engines, so it might also be a personalized title for a custom build. Alternatively, it could be the name of a club event, like 'Cubic Ride Club.' I recommend checking Harley's official customization catalog or consulting experienced custom mechanics for more details.
Having repaired motorcycles for over 20 years, here's my take on the Harley 'cube' matter: Mechanically, it most likely refers to displacement units, where 1 cubic inch ≈ 16.4cc. Classic Harley models like the Street Bob are 107 cubic inches. However, it could also be a colloquial name for some discontinued model, like how old mechanics used to call the hardtail-modified Sportsters 'square bikes'. As for electrical systems, I've never heard of related terminology unless it refers to the cubic casing of the electronic control unit. For newcomers confused by technical terms, I recommend directly providing the frame number to check the service manual, which is far better than guessing online. By the way, a reminder: modifying displacement requires registration; otherwise, you'll face issues during annual inspections.
Last week at the motorcycle show, people were discussing 'Harley Cubes,' which seems to be a new buzzword in the modification scene. It might refer to the three-dimensional cut exhaust pipe design or the square-box-style air filter cover. Some enthusiasts also mentioned its use on retro-modified bikes, specifically describing the style of transforming round fuel tanks into angular, square shapes. However, it's more commonly used as a nickname for engine displacement—after all, the Harley 883 is often called '54 cubes.' It's recommended to check out modification case posts on motorcycle forums for real-world examples.
