2025 Kawasaki Z650 Specs & Review

Kawasaki’s middleweight naked is back with the same no-nonsense formula enthusiasts love: a lively parallel twin, a confidence-inspiring chassis, and everyday usability. If you’re cross-shopping upright streetfighters, this Kawasaki Z650 review zeroes in on the 2025 Kawasaki Z650 specs that matter for commuting, back-road fun, and everything in between.

Key Specs at a Glance

• Engine type: Liquid-cooled, 4-stroke, parallel twin (DOHC, 8 valves)
• Displacement: 649 cm³ / 39.60 in³
• Maximum power: 50.2 kW {68 PS} @ 8,000 rpm
• Maximum torque: 64.0 N•m {47.2 lb-ft} @ 6,700 rpm
• Wet weight (curb mass): 188 kg / 414.47 lbs
• Seat height: 790 mm / 31.10 in

Engine & Performance

At the heart of the Z650 is a 649 cm³, liquid-cooled, DOHC parallel twin known for smooth, tractable delivery. Peak figures are 50.2 kW {68 PS} at 8,000 rpm and 64.0 N•m at 6,700 rpm, which translates to strong midrange punch—perfect for squirting through city gaps and pulling out of tight corners without constant downshifts. Fuel injection with dual 36 mm throttles and a digital ignition system provide clean starts and predictable response, while the wet, multi disc clutch and 6-speed return-shift gearbox keep shifts light and precise.

For riders tracking running costs, the Z650 is impressively frugal at 4.4 l/100km (53.46 mpg), with CO2 emissions listed at 107 g/km. There’s also a 35 kW kit option noted, returning 4.5 l/100km (52.27 mpg) on the same 107 g/km CO2 figure. The overall package is engineered for real-world thrust and efficiency, making the Z650 as happy tackling weekday duties as it is chasing weekend apexes.

Handling, Comfort & Kawasaki Z650 Seat Height

Built around a trellis, high-tensile steel frame, the Z650 emphasizes agility and feedback. Key chassis numbers—1,410 mm wheelbase and 100 mm trail—strike a balanced blend of stability and quick turn-in. Suspension is straightforward and effective: a 41 mm telescopic fork up front with 125 mm of travel, and a Horizontal Back-link shock with spring preload adjustability at the rear and 130 mm of travel. The front 120/70 ZR17 and rear 160/60 ZR17 tires (W-rated) offer a confident footprint for spirited riding.

The Kawasaki Z650 seat height is a friendly 790 mm (31.10 in), which, together with the Kawasaki Z650 weight of 188 kg (curb), helps riders of a wide range of sizes manage low-speed maneuvers with ease. Ground clearance is 130 mm, and a generous 35° steering angle to both sides supports tight U-turns and urban threading. As a naked bike, the riding posture is naturally neutral, keeping wrists and back relaxed for daily riding without dulling the fun when roads open up.

Equipment & Features

Braking hardware is stout for the class: dual semi-floating petal discs up front (Ø 300 mm) with dual-piston calipers and a single rear petal disc (Ø 220 mm) with a single-piston caliper. The combination delivers strong initial bite and solid modulation. The drivetrain pairs a 6-speed, return-shift transmission with a sealed chain final drive (primary reduction 2.095; final reduction 3.067), and the starting system is electric.

Other practical touches from the spec sheet include a 15.0-litre (3.96 gal) fuel capacity for sensible range between fill-ups, plus modern fueling and ignition for dependable day-to-day operation. Tire sizes and suspension travel are sport-oriented without going hardcore, matching the Z650’s accessible, do-it-all character.

Who Is the 2025 Kawasaki Z650 For?

The Z650 is an easy recommendation for riders who want a responsive yet approachable naked: commuters who value efficiency and nimbleness, enthusiasts who enjoy back-road pace without race-replica ergonomics, and returning riders seeking a confidence-inspiring step-up machine. Newer riders will appreciate the manageable seat height and weight, while experienced riders will enjoy the twin’s midrange and the chassis’ direct feel. Riders who prefer a calmer output can consider the listed 35 kW kit.

Torquepedia Verdict

The 2025 Kawasaki Z650 specs tell a clear story: a lively 649 cm³ parallel twin with real midrange, a light and communicative trellis chassis, and brakes that inspire confidence. It’s efficient at 4.4 l/100km, carries a practical 15.0-litre tank, and keeps ownership straightforward with proven mechanicals.

If you’re after a middleweight naked that prioritizes usable performance and everyday comfort over flashy gadgetry, the Z650 hits a sweet spot. Suspension adjustability is basic up front, and wind protection is minimal by design, but as an all-rounder with an enthusiast edge, the Z650 remains a top-tier contender in the middleweight naked class.

FAQ

• Is the 2025 Kawasaki Z650 good for beginners?

  • Yes—its 790 mm seat height, 188 kg curb mass, smooth fueling, and tractable 64.0 N•m torque at 6,700 rpm make it friendly for confident beginners and returning riders. A 35 kW kit is also listed for riders who prefer reduced output.

• What is the seat height of the 2025 Kawasaki Z650?

  • 790 mm (31.10 in).

• How heavy is the 2025 Kawasaki Z650?

  • The Kawasaki Z650 weight (curb mass) is 188 kg (414.47 lbs).

• What is the fuel economy of the 2025 Kawasaki Z650?

  • 4.4 l/100km (53.46 mpg), with CO2 emissions of 107 g/km. The listed 35 kW kit returns 4.5 l/100km (52.27 mpg).

• What brakes and tires does it use?

  • Front: dual semi-floating petal discs (Ø 300 mm) with dual-piston calipers. Rear: single petal disc (Ø 220 mm) with a single-piston caliper. Tires are 120/70 ZR17 (58W) front and 160/60 ZR17 (69W) rear.