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 |
