The famous Harley-Davidson® #1 logo with a sinister twist. Machined from billet aluminum, these covers feature domed surfaces that are polished and black anodized to a rich satin sheen, and then re-machined to expose the raw aluminum. The resulting high-contrast design complements both polished and painted engine finishes. Fits '99-later Evolution® 1340 and Twin Cam-equipped models. Installation on '06-later Dyna® and '07-later Touring and Softail® models requires separate purchase of Gasket P/N 25416-99C.