Categories: Ducati

Ducati 125 Sport (1957-60)

The Ducati 125 Sport is a motorcycle model produced from 1957 to 1960. It comes with a four-stroke, single-cylinder, OHC engine with a 124.4 cc capacity and a 8.0:1 compression ratio. The bike uses an air-cooled cooling system and forced oil sump lubrication system. It is equipped with a Dell’Orto UB20BS carburetor and Marelli CW260N spark plug. The ignition is powered by a battery and coil with a 6V 40W generator. The motorcycle is started manually through a kick start. The bike has a maximum power output of 7.5 kW / 10 hp at 8500 rpm. The transmission is a 4-speed with a wet, multi-plate clutch and a primary drive ratio of 3.00:1. The motorcycle is chain driven and has a final drive ratio of 2.750:1. In terms of suspension, the bike has hydraulically damped telescopic forks by Marzocci in the front and a swingarm with dual shocks that are three-way adjustable in the rear. The brakes are drum brakes on both the front and rear wheels. The front and rear tires are CEAT and measure 2.50-17 and 2.75-17 respectively. The bike has a length of 1910 mm, width of 580 mm, height of 920 mm, and a wheelbase of 1320 mm. It weighs 100.5 kg without fuel and has a fuel capacity of 16 L with a top speed of 112 km/h.


Technical specifications:

Make Model: Ducati 125 Sport

Year: 1957 – 60

Engine: Four stroke, single-cylinder, OHC, bevel gear driven

Capacity: 124.4 cc / 7.6 cu in



Bore x Stroke: 55.2 x 52 mm

Compression Ratio: 8.0:1

Cooling System: Air cooled

Lubrication System: Forced oil sump

Induction: Dell’Orto UB20BS carburetor

Ignition: Battery and coil, 6V 40W generator

Spark Plug: Marelli CW260N

Battery: SAFA 3L3, 13.5 Ah

Starting: Kick

Max Power: 7.5 kW / 10 hp @ 8500 rpm

Primary Drive Ratio: 3.00:1

Transmission: 4 Speed

Gear Ratios: 1st 2.75 / 2nd 1.65 / 3rd 1.18 / 4th 0.97:1


Clutch: Wet, multi-plate

Final Drive: Chain

Final Drive Ratio: 2.750:1

Front Suspension: Hydraulically damped telescopic forks, Marzocci

Rear Suspension: Swingarm, dual shocks, 3-way adjustable

Front Brakes: Drum

Rear Brakes: Drum

Front Tyre: 2.50 – 17 CEAT

Rear Tyre: 2.75 – 17 CEAT

Dimensions: Length:1910 mm / 72.2 in Width: 580 mm / 22.8 in Height: 920 mm / 36.2 in


Wheelbase: 1320 mm / 52.0 in in

Dry Weight: 100.5 kg / 221 lbs

Fuel Capacity: 16 L / 4.2 US gal / 3.5 Imp gal

Top Speed: 112 km/h / 69 mph
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