As with miniature V8 engines and power dyno's the detail these guys go to is outstanding! Their passion far exceeds anything I have or will ever do.
The Harley engine on the photo looks authentic, would love to hear it run,,,,,,,,,,,

A coupla more of his creations:

Unreal. I found a 1/8 scale tamiya fat boy lo, and an old Superglide. Its nothing like this detail, but it looks good. These guys are bloody amazing.