Turn up the voltage on your gear with the “Thunderbolt Terror” sticker, inspired by the legendary 1969 BSA Thunderbolt. This original Monsters on Machines design shows a purple, bug-eyed monster with wild yellow hair hammering a classic Thunderbolt at full tilt, flames and fury in its wake. It’s everything we love about old-school British twins and over-the-top hot-rod art rolled into one snarling decal.
The bike is rendered with loving detail—from the tank badge and parallel-twin engine to the classic stance that made the Thunderbolt a legend on back roads and café strips. The monster rider brings the chaos: clenched fists, fanged grin, and a look that says this BSA is never going to idle.
Printed on high-quality vinyl with crisp lines and rich color, this die-cut sticker is built to ride along on:
Helmets and visors
Toolboxes and shop cabinets
Laptops, water bottles, coolers
Garage doors, parts bins, and display cases
Each sticker is part of the Monsters on Machines Regular Series, marked as 7 of 12, making it a perfect piece to collect or pair with other bikes from the series. Whether you grew up around British twins or just love loud art and louder engines, this BSA Thunderbolt monster will fit right in.
