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Harley-Davidson Prison Break Is a Fat Boy Let Loose

The garage behind this Harley-Davidson Fat Boy conversion calls its creation “one of the elegant custom conversions.” They also call it Prison Break, despite it having nothing to do with the TV series, nor the actual act of breaking out of a prison.
Harley-Davidson Prison Break 26 photos
Photo: Thunderbike
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The custom motorcycle is German in conception, being the work of a shop called Thunderbike. On the market customizing Harleys for the past 20 years or so, Thunderbike is one of the most active such garages outside the United States, and one we’ve become quite accustomed to as part of our Two-Wheeler Month coverage.

Generally, the shop goes out of its way to create unique interpretations of Milwaukee-made machines as a means to advertise the long list of custom parts it makes. The Prison Break is an advertising tool as well, and it was gifted with the name just to attract attention. And it succeeded, bringing the build before our eyes in a “simple and elegant” form.

Thunderbike based this build on the Fat Boy from 2018, making it a relatively recent creation. It sports the usual complement of custom parts that range from tiny elements like the license plate frame and turn signals to the more prominent wheels and the functional air ride suspension.

The wheels, which have always been the highlight of Thunderbike builds, are in this case of equal size front and rear, at 21-inches each. They’re not the most spectacular we’ve seen, yet they do seem to get the job done on this particular Fat Boy.

Mechanically, a Dr. Jekill & Mr. Hyde exhaust system, a pulley brake kit, and a fork lowering kit are all on deck to make the Prison Break look, feel and drive like an unchained Fat Boy, a tad different from what Harley usually spits out its factory doors.

The motorcycle is not for sale, but the parts used on it are. You can see them all at this link.
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About the author: Daniel Patrascu
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Daniel loves writing (or so he claims), and he uses this skill to offer readers a "behind the scenes" look at the automotive industry. He also enjoys talking about space exploration and robots, because in his view the only way forward for humanity is away from this planet, in metal bodies.
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