MotoUSA's Road Test Editor, Adam Waheed, visited the Icon shop in Portland back in early 2012 and caught a photo of the Iron Lung in progress.

Dual SuperTrapp exhaust pipes were fitted to the Iron Lung.

The Iron Lung's oil tank sits in the cutout piece above the gas tank. The triple clamp was originally designed to handle straight bars, but they decided for clip-ons instead.

Performance Machine front brake calipers are a unique touch.

Icon puts its builds through the ringer. These definitely ain't no show bikes!

Your only job on the Iron Lung...

Rear mount, exposed battery is an homage to vintage endurance racers and practical preparation for the zombie apocalypse.

Custom paint was done by Garage 31 and the custom seat was made by New Church Moto, both Portland, Oregon-based companies.

This 1991 Harley-Davidson Sportster 883 was fabbed-up into a 1970s-era endurance racer and is now known as the Iron Lung.