Subframe #1

The other major project of the season in order to get the sidecar mounted, was to build a subframe to attach to the motorcycle. The purpose of this was to distribute the load and strain of the sidecar evenly upon the motorcycle frame, without twisting the frame in the process. There were four bolt-on mount points to the motorcycle frame total, and the subframe was largly constructed of .120 wall, 1 x 1 1/2" mild steel rectangular tubing. It is a one-off, built on the fly, on the motorcycle itself, as the design progressed.