These Engine Cylinder Covers close up the unsightly gap on the 2018 and newer GL1800 Goldwing engine, hiding tubes and various exposed frame and bolts. They also cover the many recesses on the top of the engine, which are notorious for collecting sand, gravel and other road debris while riding. The satin black finish makes these Engine Cylinder Covers virtually disappear, and will help keep your engine looking clean no matter where you ride. Mounts using existing bolts, comes with custom washers to ensure secure fit.