A motorcycle fork is a crucial component that connects the front wheel and axle to a motorcycle's frame, typically via a "triple clamp" or "yoke." It houses the front suspension and brake, and allows the front wheel to rotate for steering, while also establishing critical geometric parameters like rake and trail that define a motorcycle's handling and braking characteristics.
Since the 1970s, the telescopic fork has been the most common design, prized for its simplicity, lightness, and clean appearance, though "upside-down" (USD) variants are used on sport and off-road bikes for enhanced rigidity and reduced unsprung weight. Historically, a variety of fork arrangements have been developed over more than a century, including trailing link, leading link, springer, and girder forks, some of which are still available today, particularly for custom bikes or those designed for sidecars. This evolution showcases continuous efforts to optimize motorcycle performance and rider experience across diverse applications.