New this Forum, but have been around some other motorcycles forums for a couple years. I was fortunate enough to find what I think is an original Hallman/Profab HL500 over the weekend. It's been tough finding information on these bikes. For instance I have only seen one photo of my style of swing arm that has interesting dual shock mounts, one in the middle of the arm and one by the axle. What I got: HL500 frame and Swingarm (with all mounts included) The original unstamped TT500 Motor with a 540 kit. (frozen from being left outdoors) YZ125 Aluminum Gas tank with TT decals 1977 TT500 mostly complete minus seat and airbox (turns over with compression) Here are some photos Mototek Ignition and no serial number. What I found in the top end Finding information on these has been pretty difficult, but Rob Phillips at Husky Restoration has been extremely helpful so far. I am dropping all my other projects to work on this. Wish me luck!