| General |
| Year | 2009 | 2025 |
| Make Model | KTM 690 Duke | Harley Davidson Sportster S |
| Dimensions |
| Seat Height | 865 mm / 34 in | 765 mm / 30.1 in |
| Wheelbase | 1472 mm / 57.9 in | 1520 mm / 59.8 in |
| Ground Clearance | 155 mm / 6.1 in | 90 mm / 3.5 in |
| Height | - | 1085 mm / 42.7 in |
| Length | - | 2270 mm / 89.42 in |
| Seat Height (Laden) | - | 734 mm / 28.9 in |
| Width | - | 840 mm / 33.1 in |
| Weights & Capacities |
| Dry Weight (kg) | 148.5 | 221 |
| Wet Weight (kg) | - | 228 |
| Dry Weight | 148.5 kg / 327 in | 221 kg / 487 lbs |
| Fuel Capacity | 13.5 Litres / 3.6 US gal / 3.0 Imp gal | 11.7 Litres / 3.1 US gal |
| Maximum Load / GVWR | 350 kg / 772 lbs | - |
| Oil Capacity | 1.7 L / 1.8 US qt / 1.5 Imp qt | - |
| Wet Weight | - | 228 kg / 502 lbs |
| Performance |
| Max Power | 46 kW / 65 hp @ 7500 rpm | 121 hp / 90 kW @ 7500 rpm |
| Max Torque | 65 Nm / 6.6 kgf-m / 47.9 ft-lb @ 6550 rpm | 126 Nm / 93 lb-ft @ 6000 rpm |
| Engine |
| Displacement | 653.7 cc / 39.91 cu in | 1252 cc / 76.4 cu-in |
| Engine Detail | Four stroke, single cylinder, SOHC, 4 valves | 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 | 102 x 80 mm | 105 x 72.3 mm |
| Compression Ratio | 11.8:1 | 12.0:1 |
| Cooling System | Liquid Cooled | Liquid cooled |
| Engine Oil Specification | Synthetic, 15W-50 | - |
| Exhaust | Stainless steel silencer with regulated catalytic converter | 2-into-1-into-2, catalyst in muffler |
| Fuel Induction | Generation Keihin EMS with EPT (Electric Power Throttle) | Electronic Sequential Port Fuel Injection (ESPFI) |
| Ignition | Kokusan DC-CDI | - |
| Lubrication | Wet sump | Semi-dry sump |
| Spark Plug | NGK LKAR 8AI - 9 | - |
| Starter | Electric | Electric |
| EV Specifics |
| Battery Capacity | 12 V / 11.2 Ah | - |
| Drivetrain |
| Clutch | APTC multi-disc wet clutch, hydraulically operated | Mechanical, 8 plate wet, assist & slip, 1090N |
| Final Drive | Chain X-Ring 5/8 x 5/16" | Belt, 34/80 ratio |
| Gear Ratios | 1st 14:35 / 2nd 16:28 / 3rd 21:28 / 4th 21:23 / 5th 23:22 / 6th 23:20 | 1st 12.21 / 2nd 9.022 / 3rd 6.994 / 4th 5.641 / 5th 4.731 / 6th 4.131 |
| Primary Drive | - | Gear, 49/89 ratio |
| Primary Drive Ratios | 36:79 | - |
| Transmission / Drive | 6 Speed | 6 Speed |
| Chassis |
| Frame Type | Chromoly trellis frame, powder-coated, aluminium sub frame | Stressed-member, high strength low alloy steel trellis frame; stamped, cast, and forged junctions; MIG welded; aluminum forged mid-structure |
| Suspension - Front | WP Upside-down forks, 4860 ROMA | 43 mm inverted fork with compression, rebound and spring preload adjustability. Aluminium fork triple clamps |
| Suspension - Rear | WP monoshock, 4618 with Pro-lever deflector | Linkage-mounted, piggyback monoshock with compression, rebound and hydraulic spring preload adjustability |
| Fork Angle | - | 28° |
| Lean Angle | - | 35° |
| Rake | - | 30° |
| Steering Head Angle | 63.5° | - |
| Swingarm | - | High strength low alloy steel, tubular sections, stamped x-member, forged axle junctions; MIG welded |
| Trail | 100.7 mm / 3.96 in | 148 mm / 5.8 in |
| Wheel Travel - Front | 140 mm / 5.5 in | 92 mm / 3.6 in |
| Wheel Travel - Rear | 140 mm / 5.5 in | 82 mm / 3.2 in |
| Wheels & Brakes |
| Brakes - Front | Single 320 mm floating disc, radially screwed four-piston brake caliper | Single 320mm rotor, radially mounted, monoblock, 4-piston caliper |
| Brakes - Rear | Single 240 mm floating disc, single piston caliper | Single 260mm solid uniform expansion rotor, floating single piston caliper |
| ABS | - | Standard |
| Rims - Front | Cast aluminium wheels 3.5 x 17" | 4.5 x 17 |
| Rims - Rear | Cast aluminium wheels 5.5 x 17" | 5.0 x 16 |
| Tyres - Front | 120/70 - R17 | 160/70TR17 73V Dunlop- Harley-Davidson Series, radial, GT503 |
| Tyres - Rear | 160/60 - R17 | 180/70R16 77V Dunlop- Harley-Davidson Series, radial, GT503 |
| Wheels | - | Aluminum cast, satin black |