2026 Ducati Diavel V4 vs 2026 Harley-Davidson Sportster S - Spec Comparison
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2026 Ducati Diavel V4
The 2026 Ducati Diavel V4 is a muscular cruiser-sportbike hybrid powered by a 1,158cc V4 engine delivering aggressive performance with cruiser styling. Best suited for riders seeking commanding presence and accessible power, it combines Ducati's advanced technology including Quick Shift transmission and slipper clutch with relaxed ergonomics. Known for blending low-slung comfort with genuine performance capability and distinctive Italian design.
2026 Harley-Davidson Sportster S
The 2026 Harley-Davidson Sportster S is engineered for modern riders seeking aggressive performance in a middleweight package. Its 121-horsepower Revolution Max engine, advanced 43mm inverted fork, and nimble 59.8-inch wheelbase deliver sharp handling and responsive acceleration. Best known for blending classic Harley character with contemporary technology, it appeals to riders wanting genuine sportiness without sacrificing the brand's iconic heritage.
2026 Ducati Diavel V4 vs 2026 Harley-Davidson Sportster S: the key differences
Both are cruisers, so this is a like-for-like choice.
- The 2026 Ducati Diavel V4 makes 47 hp more (168 vs 121 hp).
- The 2026 Harley-Davidson Sportster S has a 56 mm lower seat (734 vs 790 mm), which helps shorter riders.
- The 2026 Ducati Diavel V4 carries 8.3 litres more fuel (20 vs 11.7 L).
2026 Ducati Diavel V4: It's built for high-speed power cruising and confident sport-oriented boulevard riding rather than commuting or off-road use.
2026 Harley-Davidson Sportster S: Built as a muscular power-cruiser for spirited street riding and boulevard presence rather than distance touring or utility.
Verdict: Choose the 2026 Ducati Diavel V4 if you want more power and a bigger tank. Choose the 2026 Harley-Davidson Sportster S if you want a lower seat. Check the full table below for every figure, and the size comparison for fit.
| Specification | 2026 Ducati Diavel V4 | 2026 Harley-Davidson Sportster S |
|---|---|---|
| Other | ||
| Category | Cruiser | Cruiser |
| Rake | 26deg | 30 |
| Fuel Tank Material | - | Metal |
| Engine | ||
| Capacity: | 1158.0 ccm (70.67 cubic inches) | 1252.0 ccm (76.40 cubic inches) |
| CO2 Emissions | ✓169 CO2 g/km | ✓129 CO2 g/km |
| EPA Certificate No. | TDUCC01.2DV4-004 | - |
| EPA Est. Fuel Consumption | 7.19 L/100km (32.7 US mpg) | 5.49 L/100km (42.8 US mpg) |
| EPA CO Emissions | 1.1 CO g/km | 0.6 CO g/km |
| Engine Type | V four, four-stroke | V-Twin, four-stroke |
| Bore x Stroke | 83.0 x 53.5 mm (3.3 x 2.1 inches) | 105.0 x 72.3 mm (4.1 x 2.8 inches) |
| Compression | 14.0:1 | 12.0:1 |
| Cooling System | Liquid | Air |
| Fuel System | Injection | Injection |
| Starting | Electric | Electric |
| Aspiration | Naturally aspirated | Naturally aspirated |
| Valves Per Cylinder | 4 | 4 |
| Performance | ||
| Power | ✓168.0 HP (124.0 kW) @ 10750 RPM | 121.0 HP (90.0 kW) @ 7500 RPM |
| Torque | 126.0 Nm (12.8 kgf-m or 92.9 ft.lbs) @ 7500 RPM | ✓126.1 Nm (12.9 kgf-m or 93.0 ft.lbs) @ 6000 RPM |
| Power/Weight Ratio | 0.7962 HP/kg (dry) | 0.5478 HP/kg (dry) |
| 0-60 mph | - | 3.40 seconds |
| 0-100 km/h (0-62 mph) | - | 3.60 seconds |
| Chassis & suspension | ||
| Frame | Aluminum monocoque frame | - |
| Front Suspension | Ø 50 mm fully adjustable USD fork | 43 mm inverted fork with compression, rebound and spring preload adjustability. Aluminum fork triple clamps |
| Rear Suspension | Fully adjustable monoshock, aluminium single-sided swingarm | Linkage-mounted, piggyback monoshock with compression, rebound and hydraulic spring preload adjustability |
| Front Wheel Travel | 120 mm (4.7 inches) | - |
| Rear Wheel Travel | 145 mm (5.7 inches) | - |
| Rake (fork angle) | 26.0° | 30.0° |
| Trail | 112 mm (4.4 inches) | 147 mm (5.8 inches) |
| Ground Clearance | - | 89 mm (3.5 inches) |
| Transmission | ||
| Gearbox | 6-speed | 6-speed |
| Transmission Type | Manual | Manual |
| Final Drive | Chain | Belt |
| Clutch | Hydraulically controlled slipper and self-servo wet multiplate clutch | Multi-plate with diaphragm spring in oil bath |
| Brakes & wheels | ||
| Front Brakes | Double disc. ABS. Semi-floating discs. Four-piston calipers. Radially mounted. | Front: radially mounted, monoblock, 4-piston caliper Rear: floating, single piston caliper |
| Front Brakes Diameter | 320 mm (12.6 inches) | - |
| Rear Brakes | Single disc. ABS. Two-piston calipers. | Single disc. ABS. Floating, single piston caliper |
| Rear Brakes Diameter | 265 mm (10.4 inches) | - |
| ABS | Yes | Yes |
| Front Tyre | Pirelli Diablo Rosso III, 120/70 ZR17 | 160/70R17 73V |
| Rear Tyre | Pirelli Diablo Rosso III, 240/45 ZR17 | 180/70R16 77V |
| Dimensions & weight | ||
| Wheelbase | 1593 mm (62.7 inches) | 1519 mm (59.8 inches) |
| Overall Length | 2200 mm (86.6 inches) | 2271 mm (89.4 inches) |
| Seat Height | 790 mm (31.1 inches) | ✓734 mm (28.9 inches) |
| Dry weight | ✓211.0 kg (465.2 pounds) | 220.9 kg (487.0 pounds) |
| Wet Weight | ✓223.0 kg (491.6 pounds) | 227.7 kg (502.0 pounds) |
| Fuel Capacity | ✓20.00 litres (5.28 US gallons) | 11.70 litres (3.09 US gallons) |
| Overall Width | - | 841 mm (33.1 inches) |
| Oil capacity | - | 4.80 litres (5.07 US quarts) |
"Best" (✓) reflects that single spec only, not overall suitability - a bike can win on paper and still be the wrong choice for you. Ties are all marked; specs with no clear better/worse direction (e.g. displacement, wheel size) are never marked, only tinted where bikes differ.
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