| General |
| Year | 2018 | 2025 |
| Make Model | Kawasaki Ninja 650 | Harley Davidson Sportster S |
| Dimensions |
| Seat Height | 790 mm / 31.1 in | 765 mm / 30.1 in |
| Wheelbase | 1410 mm / 55.5 in. | 1520 mm / 59.8 in |
| Ground Clearance | 130 mm / 5.1 in | 90 mm / 3.5 in |
| Height | 1135 mm / 44.6 in | 1085 mm / 42.7 in |
| Length | 2055 mm / 80.9 in. | 2270 mm / 89.42 in |
| Seat Height (Laden) | - | 734 mm / 28.9 in |
| Width | 740 mm / 29.1 in. | 840 mm / 33.1 in |
| Weights & Capacities |
| Wet Weight (kg) | 193 | 228 |
| Dry Weight (kg) | - | 221 |
| Dry Weight | - | 221 kg / 487 lbs |
| Fuel Capacity | 15 Litres / 3.9 US gal | 11.7 Litres / 3.1 US gal |
| Wet Weight | 193 kg / 425.5 lbs | 228 kg / 502 lbs |
| Performance |
| Max Power | 50.2 kW / 67.3 hp @ 8,500 rpm | 121 hp / 90 kW @ 7500 rpm |
| Max Torque | 65.7 Nm / 48.4 lb-ft @ 7000 rpm | 126 Nm / 93 lb-ft @ 6000 rpm |
| Engine |
| Displacement | 649 cc / 39.65 cu /in | 1252 cc / 76.4 cu-in |
| Engine Detail | Four stroke, parallel twin cylinder. DOHC, 4 valves per cylinder. | Four stroke, 60° V-twin Revolution Max 1250, Chain-driven, DOHC, hydraulic self-adjusting lifters, intake & exhaust VVT, four valves per cylinder |
| Bore x Stroke | 83 x 60 mm | 105 x 72.3 mm |
| Compression Ratio | 10.8:1 | 12.0:1 |
| Cooling System | Liquid cooled | Liquid cooled |
| Exhaust | - | 2-into-1-into-2, catalyst in muffler |
| Fuel Induction | DFIØ with Keihin 36mm Keihin throttle bodies | Electronic Sequential Port Fuel Injection (ESPFI) |
| Ignition | TCBI with electronic advance | - |
| Lubrication | Wet sump | Semi-dry sump |
| Starter | Electric | Electric |
| Drivetrain |
| Clutch | Wet multi-disc, manual | Mechanical, 8 plate wet, assist & slip, 1090N |
| Final Drive | O-ring chain | Belt, 34/80 ratio |
| 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) | 1st 12.21 / 2nd 9.022 / 3rd 6.994 / 4th 5.641 / 5th 4.731 / 6th 4.131 |
| Primary Drive | - | Gear, 49/89 ratio |
| Transmission / Drive | 6 Speed | 6 Speed |
| Chassis |
| Frame Type | Semi-double cradle, high-tensile steel | Stressed-member, high strength low alloy steel trellis frame; stamped, cast, and forged junctions; MIG welded; aluminum forged mid-structure |
| Suspension - Front | 41 mm hydraulic telescopic fork | 43 mm inverted fork with compression, rebound and spring preload adjustability. Aluminium fork triple clamps |
| Suspension - Rear | Horizontal Back-link with adjustable preload | Linkage-mounted, piggyback monoshock with compression, rebound and hydraulic spring preload adjustability |
| Fork Angle | - | 28° |
| Lean Angle | - | 35° |
| Rake | - | 30° |
| Swingarm | - | High strength low alloy steel, tubular sections, stamped x-member, forged axle junctions; MIG welded |
| Trail | 100 mm / 3.9 in | 148 mm / 5.8 in |
| Wheel Travel - Front | 125 mm / 4.9 in | 92 mm / 3.6 in |
| Wheel Travel - Rear | 130 mm / 5.1 in | 82 mm / 3.2 in |
| Wheels & Brakes |
| Brakes - Front | 2x 300mm discs 2 piston calipers | Single 320mm rotor, radially mounted, monoblock, 4-piston caliper |
| Brakes - Rear | Single 220mm disc | Single 260mm solid uniform expansion rotor, floating single piston caliper |
| ABS | - | Standard |
| Rims - Front | - | 4.5 x 17 |
| Rims - Rear | - | 5.0 x 16 |
| Tyres - Front | 120/70 -17 | 160/70TR17 73V Dunlop- Harley-Davidson Series, radial, GT503 |
| Tyres - Rear | 160/50 -17 | 180/70R16 77V Dunlop- Harley-Davidson Series, radial, GT503 |
| Wheels | - | Aluminum cast, satin black |