The Ducati ST4 motorcycle specifications include a 916 cc (55.89 cu in) engine, power of 105 hp (76.6 kW) @ 8,500 rpm, a 6-speed gearbox, and a listed weight of 236.5 kg (521.4 lb).
Key specifications
The 1999 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
How the Ducati ST4 compares
This compares the motorcycle with all Ducati models in this specifications database. The blue marker is this model and the grey line is the Ducati database average.
Very close to the Ducati database average. Around the 54th percentile across Ducati models.
Very close to the Ducati database average. Around the 52nd percentile across Ducati models.
About 16% heavier than the Ducati database average. Around the 87th percentile across Ducati models.
Very close to the Ducati database average. Around the 63rd percentile across Ducati models.
About 26% larger than the Ducati database average. Around the 96th percentile across Ducati models.
Ducati database percentile rankings
Percentiles show where this motorcycle sits across the Ducati specifications database. They are descriptive database rankings, not performance ratings.
105 hp — more powerful than about 54% of Ducati models with power data.
916 cc — larger displacement than about 52% of Ducati models.
236.5 kg — heavier than about 87% of Ducati models, or lighter than about 13%.
820 mm — taller than about 63% of Ducati models.
21 L — larger than about 96% of Ducati fuel tanks in this database.
Dimensions compared with Ducati average
Each measurement is compared with the average value across Ducati models where that dimension is available.
1,430
1,474
Close to average.
820
808
Close to average.
Mechanical overview
Additional useful specifications
| Front tire size | 120/70-ZR17 |
|---|---|
| Rear tire size | 170/60-ZR17 |
| Estimated theoretical fuel range | 356 km |
| Power-to-weight ratio | 0.444 hp/kg |
| Power-to-weight | 444.0 hp/tonne |
| Specific power | 114.6 hp/L |
| Bore/stroke ratio | 1.42:1 (Oversquare) |
Engine specifications
| Engine type | V2, four-stroke |
|---|---|
| Displacement | 916 cc (55.89 cu in) |
| Power | 105 hp (76.6 kW) @ 8,500 rpm |
| Torque | 83.0 Nm (8.5 kgf-m or 61.2 ft.lbs) @ 6,500 rpm |
| Bore × stroke | 94.0 x 66 mm (3.7 x 2.6 inches) |
| Compression ratio | 11.0:1 |
| Valves per cylinder | 4 |
| Cooling system | Liquid |
| Fuel system | Injection |
| Starter | Electric |
Transmission and drivetrain
| Gearbox | 6-speed |
|---|---|
| Final drive | Chain (final drive) |
Chassis and suspension
| Front wheel travel | 130 mm (5.1 inches) |
|---|---|
| Rear wheel travel | 148 mm (5.8 inches) |
Brakes, wheels and tires
| Front brakes | Dual disc |
|---|---|
| Rear brakes | Single disc |
| Front tire | 120/70-ZR17 |
| Rear tire | 170/60-ZR17 |
Dimensions and weight
| Wet weight | 236.5 kg (521.4 lb) |
|---|---|
| Seat height | 820 mm (32.3 inches) |
| Wheelbase | 1,430 mm (56.3 inches) |
Fuel and emissions
| Fuel capacity | 21.00 L (5.55 US gal) |
|---|---|
| Fuel consumption | 5.90 L/100 km (16.9 km/l or 39.87 mpg) |
| Greenhouse gases | 136.9 CO 2 g/km. (CO2 – Carbon dioxide emission) |
Performance
| Top speed | 243.0 km/h (151.0 mph) |
|---|---|
| 0–100 km/h | 3.20 seconds |
| 60–140 km/h | 11.10 seconds |
Disclaimer: Specifications may vary by market, trim, production date and optional equipment, and scraped or historical data can contain errors. Comparison and percentile values are calculated from Ducati models in this specifications database. Always double-check important specifications against the motorcycle owner’s/service manual and official Ducati information before relying on them. Visit the official Ducati website.