| General |
| Year | 2019 | 2024 |
| Make Model | Kawasaki Z 400 | Triumph Speed 400 |
| Dimensions |
| Seat Height | 785 mm / 30.9 in | 790 mm / 31.1 in |
| Wheelbase | 1370 mm / 53.9 in | 1377 mm / 54.2 in |
| Ground Clearance | 145 mm / 5.7 in | - |
| Height | 1055 mm / 41.5 in | 1075 mm / 42.3 in |
| Length | 1990 mm / 78.3 in | 2056 mm / 80.9 in |
| Width | 800 mm / 31.5 in | 795 mm / 31.3 in |
| Weights & Capacities |
| Wet Weight (kg) | 167 | 170 |
| Fuel Capacity | 14 Litres / 3.7 US gal | 13 Litres / 3.43 US gal |
| Wet Weight | 167 kg / 363.8 lbs | 170 kg / 375 lbs |
| Performance |
| Max Power | 33.4 kW / 45 hp @10000 rpm | 29.4 kW / 40hp @ 8000 rpm |
| Max Torque | 38 Nm / 28.0 lb-ft @ 8,000 rpm | 38 Nm / 28 ft-lbs @ 6500 rpm |
| Engine |
| Displacement | 399 cc / cu-in | 398 cc / 24.3 cu-in |
| Engine Detail | Four stroke, parallel twin, DOHC, 4 valves per cylinder | Four stroke, DOHC, single cylinder, 4 valves |
| Bore x Stroke | 70 x 51.8 mm | 89.0 x 64.0mm |
| Compression Ratio | 11.5:1 | 12.1:1 |
| Cooling System | Liquid cooled | Liquid cooled |
| Emissions | - | Euro 5 |
| Fuel Induction | DFI with 32mm throttle bodies | Bosch ride-by-wire EFI |
| Ignition | TCBI with digital advance | - |
| Lubrication | Forced lubrication, wet sump | - |
| Starter | Electric | Electric |
| Drivetrain |
| Clutch | Wet multi-disc, manual | Wet multiplate with assist and slip functions |
| Final Drive | Chain | X-ring chain |
| Final Drive Ratio | 2.929 (41/14) | - |
| Gear Ratios | 1st 2.929 (41/14) 2nd 2.056 (37/18) 3rd 1.619 (34/21) 4th 1.333 (32/24) 5th 1.154 (30/26) 6th 1.037 (28/27) | - |
| Primary Drive Ratios | 2.219 (71/32) | - |
| Transmission / Drive | 6 Speed | 6-Speed |
| Chassis |
| Frame Type | Trellis, high-tensile steel | Hybrid spine/perimeter, tubular steel, bolt-on rear subframe |
| Suspension - Front | 41mm Telescopic fork | 43mm Showa Big Piston, non-adjustable inverted fork |
| Suspension - Rear | Bottom-Link Uni-Trak, gas-charged shock with adjustable preload | Single shock, fixed damping with the shock adjustable piggy-back reservior |
| Rake | 24.5° | 26.6° |
| Swingarm | - | Twin-sided, cast aluminium alloy |
| Trail | 92 mm / 3.7 in | 101.6 mm / 4 in |
| Wheel Travel - Front | 120 mm / 4.7 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 | Single 310mm semi-floating petal discs. Caliper: Single balanced actuation dual piston | Single 300 mm disc with radially mounted 4-piston caliper |
| Brakes - Rear | Single 220 mm petal disc. Caliper: Dual-piston | Single 230 mm disc with floating caliper |
| ABS | - | Bosch dual channel |
| Tyres - Front | 110/70-17M/C 54 H | 110/70 x R17 |
| Tyres - Rear | 150/60-17M/C 66 H | 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 |