The mid 1980's were not a good time for Harley Davidson. The motorcycle market was in a slump and the motor company's operation back then could fairly be described as day to day. But a make or break effort to produce a new motorcycle paid off, lifting this American icon from the brink of extinction to the height of power. The evolution engine is what powered that comeback. The 10 1/2" X 10 1/2" hardcover book has 192 pages generously illustrated with color photos throughout.