1933 Moto Guzzi Sport 15

By James Adam Bolton
Updated on June 12, 2026
article image
by Terry Joslin

1933 Moto Guzzi Sport 15

  • Engine: 498.4cc air-cooled, four-stroke horizontal single, side valve induction/overhead valve exhaust, 88x82mm bore and stroke, 4.5:1 compression ratio, 13.2bhp @ 3,800rpm
  • Carburetion: Amal type 6/142 or Dell’Orto MD 27F
  • Ignition: Bosch magneto
  • Electrics: 6 volt battery, 10ah, Bosch dynamo
  • Lubrication: Geared oil pump, 3 liters of oil
  • Transmission: 3-speed, hand shift, helical primary gears, chain final drive
  • Clutch: multi-disc, oil bath
  • Suspension: Rigid frame, friction damped girder fork, friction steering damper
  • Wheels: Spoked steel rims, 19 x 2.5in front and rear
  • Tires: 3.50 x 19 front and rear
  • Brakes: Drum, rear actuated by heel pedal
  • Dry weight: 150kg (330lbs)
  • Wheelbase: 1428mm (56.25in)
  • Seat height: 690mm (27in)
  • Maximum speed: 62mph (100kph) approx.
  • Fuel capacity: 2.9gal U.S. (11ltr)

Even though all I had to go on were three or four dark and dingy pixelated photos of what looked like a brown and rusty old machine, and a similarly sparse five-word description, I had a gut feeling that this bike was possibly, in my eyes at least, something special.

17 years of longing and a couple of months of trawling various Italian websites and Facebook groups had led me to this point, so I sent off a message to the seller of the 1933 Moto Guzzi Sport 15, described only as “conserved and running, with documents,” and hoped for a response.

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