Hirth Motorcycles of the 1920s

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German Motorcycles

Featured Pages
Supercharged Singles
Dunelt 500cc Two-Stroke

Sammy Miller's Ariel
GON-786 HT5 Trials
HT5 Ariel

Matchless OHC Racers
Collier's Overhead Cam Single 1923-1929
Matchless OHC 1920s

Hirth Gallery

German Motorcycles of the 1920s

Hirth c.1924 254cc Racing Machine

Hirth c.1924 254cc Rennmaschine

Hirth 254cc Racer, Horizontal Water-cooled Two-stroke

Hirth c.1924 254cc, Horizontal Engine

Hirth c.1924 254cc, Horizontal Engine

Hirth c.1924 254cc, Horizontal Engine

Hirth c.1924 254cc, Horizontal Two-stroke Engine

Helmuth Hirth ID Plate, Cannstatt

Hirth c.1924 254cc, Watercooled Two-stroke

Hirth c.1924 254cc, Water-cooled Engine, Vertical

Classic Motorcycle Books

Boxer Performance

Boxer Performance
Increased torque and peak power for BMW Twins.