The Harley-Davidson 48, also known as the Forty-Eight, is a model in the Sportster lineup. It features a unique design with a smaller fuel tank, a low seat height, and a fat front tire. While the Sportster models, including the 48, do have a relatively high center of gravity compared to some other motorcycles, it's important to note that Harley-Davidson has made continuous improvements to the Sportster line over the years.
Compared to older Sportsters, the 48 benefits from various design changes and advancements that have helped improve its handling and stability. These include updates to the frame, suspension, and overall weight distribution. While it still maintains some of the characteristics of the Sportster family, the 48 has been designed to provide a better balance and improved maneuverability.
That being said, the perception of a motorcycle's handling can be subjective and vary from rider to rider. Some individuals may find the 48 to be top-heavy, especially if they are accustomed to riding motorcycles with a lower center of gravity. It's always recommended to test ride a motorcycle, including the Harley-Davidson 48, to see how it feels and handles for you personally. This will give you a better understanding of its characteristics and whether it meets your expectations and riding style.