Most motorcycle cylinder heads vary in size, design, and specifications. They are made in the form of a headlight or rotary engine cylinder head and depending on the type of head.
Metal cylinder heads are normally thought of as lightweight as aluminum alloy cylinder heads, but they are not suitable in the form of a petrol cylinder head. Other styles include aluminum, with steel tank, and chrome (plastic) cylinder, but the most common ones are made of stainless steel and lighter than the aluminum alloy cylinder.