The correct answer is: Bikes made by Harley-DavidsonHarley-DavidsonBig Twin (Stock) Engine Sizes: Flathead 45ci (737cc) Knucklehead 60ci (983cc) & 74ci (1212cc) Panhead 60ci (983cc) & 74ci (1212cc)
https://en.wikipedia.org › Harley-Davidson_engine_timelineHarley-Davidson engine timeline - Wikipedia, BMW, and Ducati, in fact, seem to hold their MSRP value better than any others. By brand, according to data compiled by the Kelley Blue Book Official Motorcycle Guide, Harley-Davidson motorcycles retained an average of 84% of their value over a five-year period.Jun 6, 2013
The title of my answer can be Harley-Davidson engine timeline
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