a. 1939 Harley-Davidson U Motor •Model:Flathead 45˚V-twin
b. 1942 Harley-Davidson WLA Motor •Model:Flathead 45˚V-twin
c. 1950 Meguro Racing Motor •Model:OHV
d. 1966 Honda Moped Motor •horsepower:1.5ph •Model:OHC
by Japanese Artist Chicara. http://www.chicara.com