Harley-Davidson

1950

Softail

1952-1969

KR 750

V2, four-stroke · 744.0 ccm (45.40 cubic inches) cc

1952-1953

Model K

V2, four-stroke · 743.0 ccm (45.34 cubic inches) cc

1952–1953

Model K and KK

46 cu in (750 cc) flathead

1952-1953

Model KK

V2, four-stroke · 743.0 ccm (45.34 cubic inches) cc

1952–1959

Racing

Historical

1953

KR

1953–1959

Model 165

165 cc (10.1 cu in) two-stroke single

1953

Model KR

V2, four-stroke · 743.0 ccm (45.34 cubic inches) cc

1954-1956

Model KH

V2, four-stroke · 833.0 ccm (50.83 cubic inches) cc

1954–1956

Model KH and KHK

54.2 cu in (888 cc) flathead

1954-1956

Model KHK

V2, four-stroke · 833.0 ccm (50.83 cubic inches) cc

1955-1959

Hummer

Single cylinder, two-stroke · 125.0 ccm (7.63 cubic inches) cc

1956

165

2-stroke · 165.0 ccm (10.07 cubic inches) cc

1957-1969

Drag Bike

V2, four-stroke · 1474.0 ccm (89.94 cubic inches) cc

1957

Ironhead

1957

Sportster

1957

Sportster XL Ironhead

V2, four-stroke · 883.0 ccm (53.88 cubic inches) cc

1957-1959

XL Sportster

V2, four-stroke · 883.0 ccm (53.88 cubic inches) cc

1957–1985

XL, Ironhead

53.9 cu in (883 cc),61 cu in (1,000 cc) (1972–1985)

1957-1969

XLCH Sportster

V2, four-stroke · 883.0 ccm (53.88 cubic inches) cc

1958-1964

FL Duo Glide

V2, four-stroke · 1212.7 ccm (74.00 cubic inches) cc

1958-1964

FLH Duo Glide

V2, four-stroke · 1212.7 ccm (74.00 cubic inches) cc

1958-1968

Sportster XLCH

V2, four-stroke · 883.0 ccm (53.88 cubic inches) cc

1958

Sportster XLCH Ironhead

V2, four-stroke · 883.0 ccm (53.88 cubic inches) cc