Turn your tank, toolbox, or laptop into a haunted hot-rod altar with “Graveyard Twin”, a Monsters on Machines tribute to the legendary Harley-Davidson Knucklehead. Green ghost-flames lick up around a detailed V-twin surrounded by sinister skulls, all rendered in bold comic-book style with heavy lines and gritty shading.
Printed on premium vinyl, this sticker is:
Die-cut with a clean white border
UV and weather resistant for indoor or outdoor use
Perfect for bikes, helmets, toolboxes, shop fridges, laptops and race trailers
Vehicle Info Blurb
Inspired by the classic Harley-Davidson Knucklehead V-twin (built from the mid-1930s through the late 1940s), this design celebrates one of the most iconic engines in motorcycle history—beloved by chopper builders, vintage racers, and garage tinkerers worldwide.
Important Note for the Detail Police
Dear Karen: this image is an artistic interpretation of a Knucklehead engine, not an exact factory-correct replica. If you need blueprint-accurate reference photos, please use a camera or a service manual. This sticker is meant for fun, attitude, and garage wall swagger—not concours judging.
Perfect for tanks, tool chests, shop doors, parts bins, guitar cases, and any place you want to fly the Knucklehead flag.
Package Info
