| General |
| Year | 1998 | 2025 |
| Make Model | Yamaha YZF1000 R1 | Harley Davidson Sportster S |
| Dimensions |
| Seat Height | 813 mm / 32.3 in | 765 mm / 30.1 in |
| Wheelbase | 1395 mm / 54.9 in | 1520 mm / 59.8 in |
| Ground Clearance | 140 mm / 5.5 in | 90 mm / 3.5 in |
| Height | 1095 mm / 43.1 in | 1085 mm / 42.7 in |
| Length | 2035 mm / 80.1 in | 2270 mm / 89.42 in |
| Seat Height (Laden) | - | 734 mm / 28.9 in |
| Width | 695 mm / 27.3 in | 840 mm / 33.1 in |
| Weights & Capacities |
| Wet Weight (kg) | 192 | 228 |
| Dry Weight (kg) | 177 | 221 |
| Dry Weight | 177 kg / 390.2 lbs | 221 kg / 487 lbs |
| Fuel Capacity | 18 Litres / US 4.7 gal | 11.7 Litres / 3.1 US gal |
| Wet Weight | 192 kg / 423 lbs | 228 kg / 502 lbs |
| Performance |
| Top Speed | 277.2 km/h / 172.2 mph | - |
| Braking (60 km/h - 0) | 12.7 m / 36.7 m | - |
| Max Power | 148.8 hp / 109.5 kW @ 10000 rpm | 121 hp / 90 kW @ 7500 rpm |
| Max Torque | 11.0 kgf-m / 108.3 Nm @ 8500 rpm | 126 Nm / 93 lb-ft @ 6000 rpm |
| Standing Start ¼ Mile | 10.3 sec / 222.7 km/h | - |
| Engine |
| Displacement | 998 cc / 60.9 cu-in | 1252 cc / 76.4 cu-in |
| Engine Detail | Four stroke, transverse four cylinder, DOHC, 5 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 | 74 x 58 mm | 105 x 72.3 mm |
| Compression Ratio | 11.8:1 | 12.0:1 |
| Cooling System | Liquid cooled | Liquid cooled |
| Engine Oil Specification | Mineral, 20W/40 | - |
| Engine Weight / Gudgeon Pin Diameter | Engine weight 65.3kg 17mm diameter gudgeons | - |
| Exhaust | Alloy muffler | 2-into-1-into-2, catalyst in muffler |
| Fuel Consumption | 17.2 km/lit | - |
| Fuel Induction | 4 x 40mm Mikuni CV Downdraft carburetors | Electronic Sequential Port Fuel Injection (ESPFI) |
| Ignition | Digital TCI | - |
| Lubrication | Wet sump | Semi-dry sump |
| Spark Plug | NGK, CR9E | - |
| Starter | Electric | Electric |
| Drivetrain |
| Clutch | Wet, multiple discs, cable operated | Mechanical, 8 plate wet, assist & slip, 1090N |
| Final Drive | Chain | Belt, 34/80 ratio |
| Gear Ratios | 1st 39/15 (2.600) 2nd 35/19 (1.842) 3rd 30/20 (1.500) 4th 28/21 (1.333) 5th 30/25 (1.200) 6th 29/26 (1.115) | 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 | Aluminium, twin spar | Stressed-member, high strength low alloy steel trellis frame; stamped, cast, and forged junctions; MIG welded; aluminum forged mid-structure |
| Suspension - Front | 41mm inverted telescopic forks | 43 mm inverted fork with compression, rebound and spring preload adjustability. Aluminium fork triple clamps |
| Suspension - Rear | Truss-type Aluminium swinging arm Monocross system | Linkage-mounted, piggyback monoshock with compression, rebound and hydraulic spring preload adjustability |
| Fork Angle | - | 28° |
| Lean Angle | - | 35° |
| Rake | 24° | 30° |
| Swingarm | - | High strength low alloy steel, tubular sections, stamped x-member, forged axle junctions; MIG welded |
| Trail | 91 mm / 3.8 in | 148 mm / 5.8 in |
| Wheel Travel - Front | - | 92 mm / 3.6 in |
| Wheel Travel - Rear | 135 mm / 5.3 in | 82 mm / 3.2 in |
| Wheels & Brakes |
| Brakes - Front | 2 x 298mm discs 4 piston calipers | Single 320mm rotor, radially mounted, monoblock, 4-piston caliper |
| Brakes - Rear | Single 256mm disc 2 piston caliper | 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 ZR17 | 160/70TR17 73V Dunlop- Harley-Davidson Series, radial, GT503 |
| Tyres - Rear | 138.8 hp @ 9600 rpm | 180/70R16 77V Dunlop- Harley-Davidson Series, radial, GT503 |
| Wheels | - | Aluminum cast, satin black |
| Wheels - Front | 3.50-17 | - |
| Wheels - Rear | 6.00-17 | - |