Comparison of Sonik Siena and UM GP1-R 50 [S]ave
| Attribute |  Sonik Siena × |  UM GP1-R 50 × |
|---|---|---|
| General | ||
| Production from (year) | 2014 | 2010 |
| Make | Sonik | UM |
| Model | Sonik Siena | UM GP1-R 50 |
| Category | Scooter | Scooter |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
| Fuel system | Carburettor | Carburettor |
| Displacement (cm³) | 49.5 | 49 |
| Power (kw) | 1.8 | - |
| Cooling system | Air | Air |
| Transmission type,final drive | Belt | Belt |
| Bore (mm) | 39 | 52.4 |
| Stroke (mm) | 41.5 | 57.8 |
| Gearbox | Automatic | 1-speed |
| Fuel control | - | Single Overhead Cams (SOHC) |
| Driveline | CVT | - |
| Ignition | C.D.I. | CDI |
| Compression | 10.5:1 | 9.2:1 |
| Chassis | ||
| Front suspension | Telescopic hydraulic fork | Telescopic Fork |
| Rear suspension | Left single shock with compression spring | Hydraulic Dual Shock |
| Front brakes | Single disc. Hydraulic. | Single disc |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Front tyre | 3.50-10 | 120/70-12 |
| Rear tyre | 3.50-10 | 120/70-12 |
| Other | ||
| Starter | Electric & kick | Electric & kick |
| Color options |
|
|
| Dimensions | ||
| Wheelbase (mm) | 1,250 | 1,243 |
| Dry weight (kg) | 75 | 91 |
| Power/weight ratio | 0.024 | - |
| Overall height (mm) | 1,170 | 1,167 |
| Overall length (mm) | 1,780 | 1,827 |
| Overall width (mm) | 660 | 659 |
| Seat height (mm) | 820 | 760 |
| Performance | ||
| Top speed (km/h) | 45 | - |
| Fuel capacity (l) | 4.5 | 5.6 |
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