The statement you provided appears to be a common recommendation often referred to as the "break-in period" for motorcycles. While it is not a hard and fast rule applicable to all motorcycles, it is generally advised by manufacturers and experts as a guideline to follow during the initial stages of owning a new motorcycle. However, it is important to note that the specifics of break-in recommendations can vary between manufacturers and models.
During the break-in period, it is typically recommended to ride the motorcycle at varying speeds, avoiding sustained high speeds or heavy loads. This allows the engine components to gradually wear in and settle, ensuring optimal performance and longevity. The suggested speed limit during the break-in period is often lower than the motorcycle's maximum speed.
While it is not necessarily true that exceeding 60 km/h during the break-in period will immediately damage the engine, adhering to the manufacturer's recommendations for break-in can help promote the long-term health and durability of the motorcycle. Following these guidelines can help the engine and other components properly seat and adjust, leading to better overall performance and potentially avoiding premature wear or damage.
To get accurate and specific information regarding the break-in period for a particular motorcycle model, it is always advisable to consult the owner's manual provided by the manufacturer. The manual will typically include detailed instructions and recommendations regarding the break-in process.