First post in Hacks for me. My curiosity is getting the better of me.... Last year at Sturgis on a road in the middle of nowhere, this hack is coming right at me and there wasn't a rider on the bike, a guy was just sitting in the sidecar. There was a wheel chair strapped on the back. Is this a normal thing for hacks or was this a specially made rig? Thanks in advance AND I tried a search first but couldn't come up with any posts. Thanks!!! If it is normal, please list the manufacturer so I can get smarter on this subject.