This is an Antique 1957′s AMF CWC Cleveland Welding built Roadmaster fattire cruiser bicycle. CWC bikes are built rugged and are considered some of the cooler classic tank bikes. This particular CWC bike was made after AMF bought CWC. Kinda rare because most of the AMF bikes are middle weight bikes, so this ballooner bike very well may have been the last of its kind.