Comparison of Harley-Davidson Model KR and KTM 790 Duke Prototype [S]ave
| Attribute |  Harley-Davidson Model KR × |  KTM 790 Duke Prototype × |
|---|---|---|
| General | ||
| Production from (year) | 1953 | 2017 |
| Make | Harley-Davidson | KTM |
| Model | Harley-Davidson Model KR | KTM 790 Duke Prototype |
| Category | Sport | Prototype / concept model |
| Engine and transmission | ||
| Engine type | V2, four-stroke | Twin, four-stroke |
| Fuel system | Carburettor | Injection |
| Engine details | Flathead 45 degree engine | - |
| Displacement (cm³) | 743 | 790 |
| Power (kw) | 27 | - |
| Cooling system | Air | Liquid |
| Transmission type,final drive | Chain | Chain |
| Bore (mm) | 70 | - |
| Stroke (mm) | 97 | - |
| Gearbox | 4-speed | 6-speed |
| Fuel control | Sidevalves | - |
| Clutch | - | APTC slipper clutch, hydraulically actuated |
| Exhaust system | 2-into-1 chrome | - |
| Chassis | ||
| Front suspension | - | WP upside-down |
| Rear suspension | - | WP shock absorber with Pro-Lever linkage |
| Front brakes | Expanding brake (drum brake) | Single disc |
| Rear brakes | Expanding brake (drum brake) | Single disc |
| Frame type | Steel single downtube | Chromium-Molybdenum steel trellis frame, powder coated |
| Front tyre | 3.25-19 | - |
| Rear tyre | 3.50-19 | - |
| Seat | Solo seat | - |
| Wheels | Wire spoked. Goodyear or Firestone tyres. | - |
| Other | ||
| Starter | Kick | Electric |
| Color options | - |
|
| Light | - | LED headlight |
| Electrical Voltage (V) | 6 | - |
| Dimensions | ||
| Wheelbase (mm) | 1,435 | 1,466 |
| Performance | ||
| Top speed (km/h) | 129 | - |
| Fuel capacity (l) | 17 | - |
| Oil capacity (l) | 2.8 | - |
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