Ducati 125 Sport (1965-67)

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The Ducati 125 Sport, manufactured between 1965 and 1967, is a four-stroke, single-cylinder motorcycle with a capacity of 124.4 cc. Its engine has an overhead cam and is bevel gear driven. The compression ratio is 8.0:1 and the cooling system is air cooled. The lubrication system is a forced oil sump and the induction is through a Dell’Orto UB20BS carburetor. The ignition system consists of a battery and coil, with a 6V 40W generator. It has a kickstart and a maximum power output of 7.5 kW at 8500 rpm. The transmission is four-speed, with a final drive ratio of 2.750:1 through a chain. The frame is a single tubular downpipe cradle, with front suspension using hydraulically damped telescopic forks made by Marzocci. The rear suspension is a swing arm with dual shocks that are three-way adjustable. Both the front and rear brakes are drum brakes, and the motorcycle is equipped with CEAT tires – 2.50-17 in the front and 2.75-17 in the rear. The dimensions are 1910 mm in length, 580 mm in width, and 920 mm in height, with a wheelbase of 1320mm. The motorcycle weighs 100.5 kg and has a fuel capacity of 16 L. The top speed of the Ducati 125 Sport is 112 km/h.

Technical specifications:

Make Model: Ducati 125 Sport

Year: 1965 – 67


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
Frame: Single tubular downpipe cradle
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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