jb_cb900
Street Cruiser
The 130 front and 160 rear tires are "wing" size tires. They were designed for the earlier gold wings, GL1500, with the same width rims as ours. Here's a write up about it from the Tech Pages.
http://www.cog-online.org/clubportal/clubstatic.cfm?clubID=1328&pubmenuoptID=34855
http://www.cog-online.org/clubportal/clubstatic.cfm?clubID=1328&pubmenuoptID=34855