| General |
| Year | 2018 | 2024 |
| Make Model | Kawasaki Z 650 | Triumph Speed 400 |
| Dimensions |
| Seat Height | 785 mm / 30.9 in | 790 mm / 31.1 in |
| Wheelbase | 1410 mm / 55.5 in | 1377 mm / 54.2 in |
| Ground Clearance | 130 mm / 5.1 in | - |
| Height | 1080 mm / 42.5 in | 1075 mm / 42.3 in |
| Length | 2055 mm / 80.9 in | 2056 mm / 80.9 in |
| Width | 779 mm / 30.6 in | 795 mm / 31.3 in |
| Weights & Capacities |
| Wet Weight (kg) | 184 | 170 |
| Fuel Capacity | 15 Litres / 4.0 US gal | 13 Litres / 3.43 US gal |
| Wet Weight | 184 kg / 406 lbs | 170 kg / 375 lbs |
| Performance |
| Max Power | 50.2 kW / 67.3 hp @ 8500 rpm | 29.4 kW / 40hp @ 8000 rpm |
| Max Torque | 65.7 Nm / 48.4 lb-ft @ 7000 rpm | 38 Nm / 28 ft-lbs @ 6500 rpm |
| Engine |
| Displacement | 649 cc / 39.65 cu-in | 398 cc / 24.3 cu-in |
| Engine Detail | Four stroke, parallel twin cylinder. DOHC, 4 valves per cylinder | Four stroke, DOHC, single cylinder, 4 valves |
| Bore x Stroke | 83 x 60 mm | 89.0 x 64.0mm |
| Compression Ratio | 10.8:1 | 12.1:1 |
| Cooling System | Liquid cooled | Liquid cooled |
| Emissions | - | Euro 5 |
| Fuel Induction | DFIØ with Keihin 36mm Keihin throttle bodies | Bosch ride-by-wire EFI |
| Ignition | TCBI with electronic advance | - |
| Lubrication | Wet sump | - |
| Starter | Electric | Electric |
| Drivetrain |
| Clutch | Wet multi-disc, manual | Wet multiplate with assist and slip functions |
| Final Drive | Sealed chain | X-ring chain |
| Gear Ratios | 1st 2.438 (39/16) 2nd 1.714 (36/21) 3rd 1.333 (32/24) 4th 1.111 (30/27) 5th 0.966 (28/29) 6th 0.852 (23/27) | - |
| Transmission / Drive | 6 Speed | 6-Speed |
| Chassis |
| Frame Type | Semi-double cradle, high-tensile steel | Hybrid spine/perimeter, tubular steel, bolt-on rear subframe |
| Suspension - Front | 41 mm hydraulic telescopic fork | 43mm Showa Big Piston, non-adjustable inverted fork |
| Suspension - Rear | Horizontal Back-link with adjustable preload | Single shock, fixed damping with the shock adjustable piggy-back reservior |
| Rake | 24° | 26.6° |
| Swingarm | - | Twin-sided, cast aluminium alloy |
| Trail | 100 mm / 3.9 in | 101.6 mm / 4 in |
| Wheel Travel - Front | 125 mm / 4.9 in | 139.7 mm / 5.5 in |
| Wheel Travel - Rear | 130 mm / 5.1 in | 129.4 mm / 5.1 in |
| Electrical Systems |
| Instrumentation | - | Analogue speedometer with integrated multi-function LCD screen |
| Wheels & Brakes |
| Brakes - Front | 2x 300mm discs 4 piston calipers | Single 300 mm disc with radially mounted 4-piston caliper |
| Brakes - Rear | Single 220mm disc | Single 230 mm disc with floating caliper |
| ABS | Optional | Bosch dual channel |
| Tyres - Front | 120/70 -17 | 110/70 x R17 |
| Tyres - Rear | 160/50 -17 | 150/60 x R17 |
| Wheels - Front | - | 17 x 3 in with 10-spoke cast aluminium alloy rims |
| Wheels - Rear | - | 17 x 4 in with 10-spoke cast aluminium alloy rims |