| MODEL | KAWASAKI Z 650 2021 |
| Year | 2021 |
| Engine Type | Four-stroke, parallel twin, DOHC, 4 valves per cylinder |
| Displacement / Capacity | 649 cc / 39.65 cu-in |
| Bore X Stroke | 83 x 60 mm |
| Compression Ratio | 10.8:1 |
| Cooling System | Liquid cooled |
| Max Power | 50.2 kW / 67.3 hp |
| Max Torque | 65.7 Nm / 48.5 lb-ft @ 6500 rpm |
| Ignition | TCBI with electronic advance |
| Induction | DFI with 36 mm Keihin throttle bodies |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | Wet sump |
| Gear Box | 6-speed |
| Clutch | Wet multi-disc, manual |
| Final Drive | Sealed chain |
| CHASSIS SPECS | |
| Frame | Trellis, high-tensile steel |
| Front Suspension | 41 mm hydraulic telescopic fork, 125 mm / 4.9 in travel |
| Rear Suspension | Horizontal back-link with adjustable preload, 130 mm / 5.1 in travel |
| Front Brakes | 2x 300 mm petal-style discs, 2-piston calipers |
| Rear Brakes | Single 220 mm petal-style disc |
| DIMENSION SPECS | |
| Overall Length | 2065 mm / 81.3 in |
| Overall Width | 764.5 mm / 30.1 in |
| Overall Height | 1064 mm / 41.9 in |
| Seat Height | 790 mm / 31.1 in |
| Wheelbase | 1410 mm / 55.5 in |
| Ground Clearance | 130 mm / 5.1 in |
| Dry Weight | — |
| Wet Weight | 187 kg / 412.3 lbs |
| WHEEL SPECS | |
| Front Tyre | 120/70 ZR17 |
| Rear Tyre | 160/60 ZR7 |
| FUEL SYSTEM | |
| Fuel Capacity | 15 litres / 4.0 US gal |
| Fuel Consumption | — |
| Top Speed | — |
Compared with the 2020 table, the 2021 Z650 lists a trellis frame and petal-style brake discs, with a 790 mm seat height and 187 kg wet weight. The 649 cc parallel twin is unchanged. The page lists Metallic Spark Black and Metallic Flat Spark Black for this year.
