Abra Motorcycles

Alfeo Rodolfi established Autobicicletta Brevettata Rodolfi Alfeo in Bologna using both DKW and, from 1924, their own 132cc two-stroke engines. A limited number of motorcycles were built between 1923 to 1927

Models:

ABRA Viaggio 1923

• 
  Engine: DKW horizontal two stroke single. Bore 50, Stroke 60. Capacity 117.7cc
  Ignition: flywheel magneto
  Lubrication: petrol-oil mixture
  Gearbox: 3:1 reduction
  Final drive: Belt
  Frame: Single cradle, steel tube
  Wheels: 700x38B tyres
  Maximum speed: 45 km/h

ABRA Sport 1924

• 
  Engine: DKW vertical 2-stroke single. Bore 52.5, stroke 60. Displacement 129.8 cc
  Ignition: flywheel magneto
  Lubrication: with petrol-oil mixture
  Primary transmission: gears
  Gears: 2-speed
  Final drive: belt
  Frame: simple cradle, steel tube
  Wheels: 26x2 tyres
  Maximum speed: 65-70 km/h

ABRA Sport 1925

• 
  Engine: DKW vertical 2-stroke single. Bore 52.5, stroke 60. Displacement: 129.8cc
  Ignition: flywheel magneto
  Lubrication: petrol-oil mixture
  Primary transmission: gears
  Gearbox: 2-speed
  Final drive: belt
  Frame: tubular cradle
  Wheels: tyres 26x2
  Maximum speed: 75 km/h

Rodolfi Engine

• 
  Specification
  Type: auxiliary motor
  Production Year: late 20s early 30s
  Engine: single-cylinder inclined 2-stroke. Bore 38.8, Stroke 41mm 48.4 cc
  Ignition: Dansi flywheel
  Lubrication: petrol-oil mixture

Sources: Henshaw, correspondence, Musei Patrimonio Industriale

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