| Attribute | Yamaha Cygnus X SR 2011 × | Keeway RY6 50 2T × |
|---|---|---|
| General | ||
| Production from (year) | 2011 | 2016 |
| Make | Yamaha | Keeway |
| Model | Yamaha Cygnus X SR | Keeway RY6 50 2T |
| Category | Scooter | Scooter |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, two-stroke |
| Fuel system | Injection | Carburettor |
| Displacement (cm³) | 125 | 49.3 |
| Power (kw) | 8 | 3.2 |
| Cooling system | Air | Air |
| Transmission type,final drive | Belt | Belt |
| Torque (Nm) | 9.3 | 4 |
| Bore (mm) | 52.4 | 40 |
| Stroke (mm) | 57.9 | 39.2 |
| Gearbox | Automatic | Automatic |
| Fuel control | Overhead Cams (OHC) | - |
| Ignition | TCI | CDI |
| Clutch | - | Automatic |
| Lubrication system | Wet sump | Separate lubrication |
| Compression | 10.0:1 | 6.9:1 |
| Chassis | ||
| Front suspension | Telescopic fork | Telescopic forks |
| Rear suspension | Unit swing | Telescopic coil spring oil damped |
| Front brakes | Single disc | Single disc |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Diameter (mm) | 150 | 110 |
| Frame type | - | Rocker type |
| Front tyre | 110/70-12 | 120/70-12 |
| Rear tyre | 120/70-12 | 130/70-12 |
| Wheels | - | Black, 5-spoke |
| Front wheel travel (mm) | 78 | 65 |
| Rear wheel travel (mm) | 96 | 45 |
| Other | ||
| Starter | Electric & kick | Electric & kick |
| Color options |
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|
| Carrying capacity | full-size helmet storage under the dual seat. Glovebox in the knee-panel | - |
| Dimensions | ||
| Wheelbase (mm) | 1,295 | 1,270 |
| Kerb weight (kg) | 122 | 96 |
| Dry weight (kg) | 114 | 88 |
| Power/weight ratio | 0.0702 | 0.0364 |
| Overall height (mm) | 1,130 | 1,140 |
| Overall length (mm) | 1,855 | 1,840 |
| Overall width (mm) | 685 | 695 |
| Seat height (mm) | 785 | 775 |
| Ground clearance (mm) | 113 | 90 |
| Performance | ||
| Top speed (km/h) | 110 | 65 |
| Fuel capacity (l) | 7.1 | 6 |