| Attribute | Yamaha Road Star Midnight 2005 × | Aprilia Atlantic 400 Sprint 2009 × |
|---|---|---|
| General | ||
| Production from (year) | 2005 | 2009 |
| Make | Yamaha | Aprilia |
| Model | Yamaha Road Star Midnight | Aprilia Atlantic 400 Sprint |
| Category | Scooter | Scooter |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
| Valves per cylinder | 4 | 4 |
| Fuel system | - | Injection. Electronic fuel injection |
| Displacement (cm³) | 400 | 399 |
| Power (kw) | - | 24.5 |
| Cooling system | Liquid | Liquid |
| Transmission type,final drive | Belt | - |
| Bore (mm) | 83 | - |
| Stroke (mm) | 73 | - |
| Gearbox | - | Automatic |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) | Single Overhead Cams (SOHC) |
| Ignition | CDI | Electronic CDI with automatic advance |
| Clutch | Centrifugal clutch | Automatic centrifugal dry clutch |
| Lubrication system | - | Wet sump. Forced lubrication with mechanical oil pump |
| Compression | 10.6:1 | 10.5:1 |
| Chassis | ||
| Front suspension | 41mm Telescopic fork | 35 mm hydraulic fork. Wheel travel 105 mm |
| Rear suspension | Twin shocks | Engine acting as swingarm. Two gas filled shock absorbers with 5 position spring preload adjustment. Wheel travel 90 mm |
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Single disc |
| Diameter (mm) | 267 | 190 |
| Frame type | - | High-strength tubular steel frame with closed double cradle |
| Front tyre | 120/80-14 | 120/70-14 |
| Rear tyre | 150/70-13 | 120/70-14 |
| Other | ||
| Starter | Electric | Electric |
| Color options |
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| Dimensions | ||
| Wheelbase (mm) | 1,565 | 1,550 |
| Dry weight (kg) | 200 | 199 |
| Power/weight ratio | - | 0.1231 |
| Overall height (mm) | 1,379 | 1,370 |
| Overall length (mm) | 2,230 | 2,200 |
| Overall width (mm) | 780 | 815 |
| Seat height (mm) | 749 | 780 |
| Performance | ||
| Fuel capacity (l) | 3.7 | 15 |