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Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteNeither bike is a universal winner. The Ducati Streetfighter V2 is the sharper, more electronically equipped option on its MY25 U.S. specification, while the Kawasaki Z900 offers a larger inline-four engine, a lower seat and a bigger tank on the current European specification. Your best choice depends on local price and trim, engine character, rider-aid requirements, seating fit, passenger use and how much suspension and brake hardware you value.
Streetfighter V2 or Z900: the quick decision
Choose the Ducati Streetfighter V2 if you want a compact 90-degree V-twin, a documented six-axis IMU electronics package, fully adjustable suspension, premium Brembo M50 front calipers and a standard up/down quickshifter. Choose the Kawasaki Z900 if you prefer the smooth-revving character of a 948 cc inline-four, an 830 mm seat, a 17-litre tank and straightforward naked-bike hardware.
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These specifications come from different markets: Ducati’s MY25 U.S. page and Kawasaki’s current European page. Model year, homologation, standard equipment and availability can change by country. Confirm the exact local version before ordering or comparing prices.
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Ducati: 890 cc 90-degree V-twin
The MY25 Streetfighter V2 uses an 890 cc liquid-cooled 90-degree V-twin with variable intake valve timing. Ducati lists 120 hp (88 kW) at 10,750 rpm and 69 lb-ft (93.3 Nm) at 8,250 rpm. Those are manufacturer figures, not independent dyno results.
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A V-twin’s cylinder arrangement and firing intervals are engineering characteristics, not guarantees of a particular acceleration feel, sound or smoothness. Without a controlled road or dyno comparison, it is more accurate to say the Ducati delivers its published output through a smaller-displacement twin than to label it faster or more exciting.
Kawasaki: 948 cc inline-four
The European Z900 specification lists a 948 cc liquid-cooled DOHC inline-four making 91.0 kW (124 PS) at 9,500 rpm and 97.4 Nm at 7,700 rpm. Kawasaki uses PS, or metric horsepower, rather than the Ducati page’s hp. Keep the units attached when comparing the numbers; they are close in headline power but not expressed identically.
The listed torque value is numerically higher than Ducati’s converted 93.3 Nm, but peak figures alone do not show the shape of the torque curve, throttle calibration or gearing. They cannot establish which motorcycle accelerates harder in every gear.
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Published specifications side by side
| Specification | Ducati Streetfighter V2 MY25 (U.S. page) | Kawasaki Z900 (European page) |
|---|---|---|
| Engine | 890 cc liquid-cooled 90-degree V-twin with variable intake valve timing | 948 cc liquid-cooled DOHC inline-four |
| Peak power | 120 hp (88 kW) at 10,750 rpm | 91.0 kW (124 PS) at 9,500 rpm |
| Peak torque | 69 lb-ft (93.3 Nm) at 8,250 rpm | 97.4 Nm at 7,700 rpm |
| Published mass | 392 lb (178 kg) wet, without fuel | 213 kg curb, including required fluids, a more-than-90%-full tank and the supplied tool kit where applicable |
| Estimated dry mass | Not stated on the cited Ducati specification | 193 kg estimated dry mass |
| Seat height | 838 mm (33 in) | 830 mm |
| Fuel capacity | 15 L | 17 L |
| Wheelbase | 1,493 mm (58.8 in) | 1,450 mm |
| Front suspension | Fully adjustable 43 mm Marzocchi fork | 41 mm inverted fork with rebound damping and spring-preload adjustment |
| Rear suspension | Fully adjustable Kayaba monoshock | Horizontal back-link gas-charged shock with rebound damping and preload adjustment |
| Front brakes | Brembo M50 calipers on twin 320 mm discs | Radial-mount opposed four-piston calipers on twin 300 mm discs |
| Rear brake | Specification not detailed in the cited Ducati summary | Single 250 mm disc |
| Front tire | 120/70 ZR17 Pirelli Diablo Rosso IV | 120/70 ZR17 |
| Rear tire | 190/55 ZR17 Pirelli Diablo Rosso IV | 180/55 ZR17 |
| Display | 5-inch TFT | Exact display and electronic-equipment list is not fully enumerated on the cited page |
Weight, seat height and physical fit
Why the mass figures cannot be compared directly
Ducati quotes 392 lb (178 kg) wet without fuel. Kawasaki quotes 213 kg curb mass, defining that figure as the motorcycle with required operating fluids, a fuel tank more than 90 percent full and the supplied tool kit where applicable. The Kawasaki page also gives an estimated dry mass of 193 kg.
Because fuel and measurement conventions differ, announcing a precise weight gap from these two numbers would be misleading. A buyer comparing showroom motorcycles should request the local technical sheets and ask whether each figure includes fuel, coolant, oil, battery and accessories.
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Seat height and reach
The Z900’s listed 830 mm seat is 8 mm lower than the Streetfighter V2’s 838 mm seat. That difference may matter when you are stopped, maneuvering in a parking space or carrying a passenger, but inseam length, seat width and suspension sag also affect reach. Sit on both motorcycles in normal riding boots before treating the numerical difference as a fit verdict.
Wheelbase and maneuvering
Ducati lists a 1,493 mm wheelbase; Kawasaki lists 1,450 mm. Wheelbase is only one part of steering behavior, alongside rake, trail, mass distribution, tire profile and handlebar leverage. The shorter listed Kawasaki wheelbase and the Ducati’s lower published mass convention may suggest different maneuvering characteristics, but those are inferences from specifications rather than tested handling results.
Electronics and rider aids
What Ducati documents as standard
The Streetfighter V2 specification describes a six-axis inertial measurement unit (IMU) supporting:
- Cornering ABS
- Ducati traction control
- Wheelie control
- Engine-brake control
- Riding modes and power modes
- Ducati Quick Shift 2.0 for upshifts and downshifts
A 5-inch TFT supplies the rider interface. Ducati’s equipment descriptions can include market or trim footnotes, so verify whether every function is standard on the motorcycle offered in your country rather than assuming that a feature shown on a global page is included locally.
What is established for the European Z900
The accessible European Z900 page used for this comparison does not enumerate a complete electronics suite. A search excerpt from a 2025 brochure mentions updated IMU electronics, a quickshifter and a TFT, but the brochure PDF was not available for verification. Do not conclude that the Z900 has no rider aids; confirm the local official brochure or specification sheet for the exact model year and trim.
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This documentation difference is itself important. If cornering ABS, traction control, wheelie control or a quickshifter is a purchase requirement, get the equipment list in writing from the local distributor before comparing the bikes.
Suspension and braking hardware
Streetfighter V2 equipment
Ducati lists a fully adjustable 43 mm Marzocchi fork and a fully adjustable Kayaba monoshock. Separate compression, rebound and preload adjustments can give an experienced rider more scope to set the motorcycle for solo weight, luggage, road conditions or track use, although component adjustability does not guarantee a better ride for every rider.
At the front, Brembo M50 calipers clamp twin 320 mm discs. Cornering ABS is part of Ducati’s documented IMU-supported system. The component names and disc dimensions indicate the hardware supplied; they do not constitute an independent stopping-distance test.
Z900 equipment
Kawasaki lists a 41 mm inverted fork with rebound damping and spring-preload adjustment. The rear is a horizontal back-link, gas-charged shock with rebound and preload adjustment. The front brake system uses radial-mount opposed four-piston calipers and dual 300 mm discs, with a single 250 mm rear disc.
The Kawasaki page provides fewer electronic details than Ducati’s page, but its mechanical specifications are clear. Compare the actual setup range and ask a qualified technician to set sag for your weight; factory adjustment positions are not a substitute for setup.
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Tires and replacement planning
Both motorcycles use a 120/70 ZR17 front tire, so some front-tire choices may share the same nominal size. The Ducati page specifies Pirelli Diablo Rosso IV tires in 120/70 ZR17 front and 190/55 ZR17 rear. Kawasaki lists 120/70 ZR17 front and 180/55 ZR17 rear.
Do not order solely by width and diameter. Verify the approved model-year fitment, load index, speed rating, construction and any manufacturer marking. The different rear sizes can change which replacement products are available and how the motorcycle’s gearing and electronic calibration are intended to work.
Fuel capacity, consumption and practical range
The Z900 has a listed 17 L tank, 2 L more than the Streetfighter V2’s 15 L tank. Kawasaki also publishes homologation consumption of 4.8 L/100 km and 117 g/km CO2. Those are certification figures, not a comparative real-world fuel-economy test; traffic, speed, temperature, rider weight and riding mode will change consumption.
Ducati’s cited specification gives the 15 L capacity but does not provide a directly comparable consumption figure in the supplied material. A larger tank does not automatically produce a longer usable range, and the reserve strategy and fuel gauge calibration matter. Plan touring stops using the local owner’s manual and your own observed consumption.
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| If your priority is… | More logical starting point | Why | What to verify |
|---|---|---|---|
| Maximum documented rider aids | Streetfighter V2 | Ducati explicitly lists a six-axis IMU, cornering ABS, traction and wheelie control, engine-brake control, riding/power modes and an up/down quickshifter. | Confirm standard equipment and software functions for your local trim. |
| Inline-four engine character | Z900 | The Kawasaki uses a 948 cc DOHC inline-four. | Ride it at city speeds and on the open road; peak figures do not describe the whole power delivery. |
| Lower seat | Z900 | 830 mm versus Ducati’s listed 838 mm. | Check seat width, suspension sag and your actual reach. |
| Fully adjustable suspension as listed | Streetfighter V2 | Both ends are described as fully adjustable. | Ask about adjustment ranges and have sag set correctly. |
| Large standard fuel tank | Z900 | 17 L versus 15 L on the Ducati page. | Use local consumption data rather than assuming a fixed range. |
| Premium front brake specification | Streetfighter V2 on paper | Brembo M50 calipers and 320 mm discs are listed. | Compare lever feel and ABS calibration during a legal, controlled test ride. |
| Passenger and commuting practicality | Decide by fit and local equipment | Neither specification table establishes passenger comfort, heat management or wind protection. | Inspect the passenger seat, grab points, luggage options and service access in person. |
Use case: commuting, weekend roads and track days
Daily commuting
The Kawasaki’s lower listed seat and larger tank may be useful in stop-start riding and longer gaps between fuel stops. The Ducati’s riding modes and electronic controls may appeal if you regularly encounter wet roads or changing grip. Neither page establishes real-world heat output, fuel economy or traffic comfort, so include a weekday test ride in your decision.
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Weekend back-road riding
The Ducati offers the broader documented adjustment and rider-aid package, while the Kawasaki provides a larger-displacement inline-four and a shorter listed wheelbase. Those facts help define what to test, not which bike will be faster on your roads. Pay attention to throttle response at corner exit, braking confidence, bar position and how easily you can place your feet at a stop.
Track use
Fully adjustable suspension, cornering ABS, traction control, wheelie control and engine-brake control give the Streetfighter V2 more documented setup tools for a rider who intends to tune the motorcycle. The Z900’s fork and shock are adjustable in the areas Kawasaki lists, but the available electronics and track-oriented settings must be confirmed for your market. Track preparation, tires and suspension setup can change the result more than a brochure specification.
Ownership details that are documented
Ducati service schedule and warranty
Ducati lists a 24-month unlimited-mileage warranty on the cited U.S. page, plus annual service. It specifies an oil service at 15,000 km (9,000 miles) or 24 months and a valve-clearance check at 45,000 km (28,000 miles). Confirm that warranty duration, labor coverage, interval and mileage limits apply in your country; regional terms can differ.
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Kawasaki service information
The cited European Z900 specification supplies the fuel-consumption and emissions figures but does not establish a complete maintenance schedule or warranty term. Obtain those details from the local Kawasaki distributor before calculating ownership cost. Do not assume that an interval from another market or model year applies to the motorcycle you are buying.
Price and availability
No current, comparable local purchase prices were established for these two pages. Dealer destination charges, registration, taxes, accessories and promotional finance can materially change the amount you pay. Compare like-for-like model years and standard equipment, then request an itemized written quote.
How to make the decision without over-reading the brochure
- Identify the exact motorcycles. Record country, model year, trim, color-specific equipment and whether the motorcycle is new, demonstrator or used.
- Normalize the specifications. Keep hp and PS separate, and ask for comparable mass definitions that either include or exclude fuel consistently.
- Confirm electronics in writing. For the Z900 especially, verify IMU functions, ABS modes, traction control, quickshifter availability and whether each item is standard or optional.
- Check your fit. Sit on both motorcycles in riding gear, turn the bars lock-to-lock and lift each bike from the side stand. A numerical seat-height difference cannot account for seat width or suspension sag.
- Ride the same route. Include a low-speed section, open road, several controlled braking events and a passenger assessment if two-up use matters. Treat impressions as your own test, not as proof that one model is universally superior.
- Price the complete package. Include registration, insurance, scheduled maintenance, tires, luggage, passenger equipment and any required electronics or suspension upgrades.
- Choose the engine you will enjoy using. The Ducati’s V-twin and the Kawasaki’s inline-four are fundamentally different layouts. Your throttle, gear and sound preferences should carry more weight than a small difference in peak numbers.
Common comparison mistakes
- Subtracting 178 kg from 213 kg. Ducati’s 178 kg figure excludes fuel; Kawasaki’s 213 kg curb figure includes a nearly full tank and operating fluids.
- Treating 124 PS as 124 hp. They are different units. Preserve the manufacturer’s unit or perform an explicit conversion.
- Assuming an unlisted feature is absent. Kawasaki’s accessible page does not enumerate a full electronics package. Verify the local brochure instead of inferring a lack of rider aids.
- Calling component hardware proof of performance. Fork diameter, caliper name and disc size do not replace a controlled braking or handling test.
- Using nominal tire size as a complete fitment check. Confirm load and speed ratings, approved construction and model-year clearance before purchasing.
- Using homologation fuel figures as a promise. Kawasaki’s 4.8 L/100 km is a certification value, not a guarantee of your commuting range.
- Applying another country’s price or warranty. The cited pages are from the United States and Europe; local taxes, warranty terms and standard equipment may differ.
Verdict: which one should you get?
Get the Ducati Streetfighter V2 when its documented electronics, fully adjustable suspension, Brembo M50 brakes, standard quickshifter and V-twin layout match your priorities and the local price is acceptable. It is the more specification-rich choice on the published MY25 U.S. equipment list.
Get the Kawasaki Z900 when you favor a 948 cc inline-four, the lower 830 mm seat, the 17 L tank and a simpler route to a capable naked motorcycle. Its published 124 PS and 97.4 Nm figures are manufacturer claims, and its curb-mass convention is not directly comparable with Ducati’s no-fuel figure.
If the decision remains close, let a back-to-back test ride settle the engine response, riding position, brake feel and low-speed balance, then verify the exact local specification and written price. The available evidence supports a conditional choice, not a universal winner.
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
