Harley-Davidson motorcycles do not have a specific standard steering ratio across all models. The steering ratio can vary depending on the specific model and design characteristics of the motorcycle. Different Harley-Davidson models may have different steering geometries and ratios to suit their intended purpose, riding style, and overall handling characteristics.
Harley-Davidson offers a wide range of motorcycles, including touring bikes, cruisers, sportsters, and more. Each model may have its own unique steering characteristics and specifications.
If you are interested in the steering ratio of a particular Harley-Davidson motorcycle model, I recommend referring to the official specifications provided by Harley-Davidson or contacting a Harley-Davidson dealership for accurate and up-to-date information on that specific model.