Shrew Snow Cycle Conversion mfg. late 1960's. Converts small motorcycle (90cc-250cc) to a snowcycle. Company was located near Spokane Wa. I installed on a bike and tried it out in 1969, sold bike and stored since. Almost new complete with instruction manual. Would be really neat with a 60's vintage bike for display item, one of a kind machine. Only asking $275, FTF Seattle-Everett area.