Comparison of Aprilia RS 660 2020 and Norton Atlas Nomad 2019 [S]ave
| Attribute |  Aprilia RS 660 2020 × |  Norton Atlas Nomad 2019 × |
|---|---|---|
| General | ||
| Production from (year) | 2020 | 2019 |
| Make | Aprilia | Norton |
| Model | Aprilia RS 660 | Norton Atlas Nomad |
| Category | Prototype / concept model | Allround |
| Engine and transmission | ||
| Engine type | Twin, four-stroke | Twin, four-stroke |
| Valves per cylinder | - | 2 |
| Fuel system | Injection | Injection |
| Displacement (cm³) | 660 | 650 |
| Power (kw) | 73 | 61.3 |
| Cooling system | Liquid | Liquid |
| Transmission type,final drive | Chain | Chain |
| Torque (Nm) | - | 64 |
| Bore (mm) | - | 82 |
| Stroke (mm) | - | 61.5 |
| Gearbox | 6-speed | 4-speed |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) | Double Overhead Cams/Twin Cam (DOHC) |
| Emission details | Euro 5 | - |
| Ignition | - | Keyless |
| Compression | - | 11.5:1 |
| Chassis | ||
| Front suspension | Telescopic fork | 50mm diameter Roadholder USD forks. Preload, compression and rebound adjustable. |
| Rear suspension | Aluminium alloy swingarm. | Roadholder monoshock with rising rate linkage and piggyback reservoir. Adjustable preload. |
| Front brakes | Double disc. ABS. Brembo | Double disc. Full floating Brembo discs. Radially mounted twin Brembo monoblock callipers with ABS. Brembo master cylinder. |
| Rear brakes | Single disc. ABS. Brembo. | Single disc. Brembo twin piston rear calliper with ABS. Brembo master cylinder. |
| Diameter (mm) | 320 | 245 |
| Frame type | Aluminum frame with the engine as a load-bearing element | Twin tube seamless steel perimeter chassis with aluminium swingarm mount. |
| Front tyre | 120/70-17 | 110/80-R18 |
| Rear tyre | 180/55-17 | 180/55-R17 |
| Wheels | - | Carbon fiber |
| Front wheel travel (mm) | 160 | 150 |
| Rear wheel travel (mm) | - | 150 |
| Trail (mm) | 108 | - |
| Rake (fork angle) (degree) | 26 | - |
| Other | ||
| Starter | Electric | Electric |
| Color options |
| - |
| Light | Triple-LED head light | - |
| Instruments | Digital, color | - |
| Dimensions | ||
| Wheelbase (mm) | 1,369 | 1,446 |
| Dry weight (kg) | 169 | 178 |
| Power/weight ratio | 0.432 | 0.3444 |
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