| Attribute | Yamaha PW80 2007 × | Rieju MX Disc 50 × |
|---|---|---|
| General | ||
| Production from (year) | 2007 | 2010 |
| Make | Yamaha | Rieju |
| Model | Yamaha PW80 | Rieju MX Disc 50 |
| Category | Enduro / offroad | Minibike, cross |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Fuel system | Carburettor. Mikuni VM15/1 | Carburettor. Dell-Orto SHA 14/12 |
| Displacement (cm³) | 79 | 50 |
| Power (kw) | 3.2 | - |
| Cooling system | Air | Air |
| Transmission type,final drive | Chain | Chain |
| Torque (Nm) | 6.3 | - |
| Bore (mm) | 47 | 39 |
| Stroke (mm) | 45.6 | 41.8 |
| Gearbox | - | Automatic |
| Ignition | CDI | - |
| Clutch | Wet, multiple-disc and automatic | - |
| Lubrication system | Yamaha Autolube | - |
| Compression | 6.6:1 | - |
| Exhaust system | - | Muffler with silencer |
| Chassis | ||
| Front suspension | Telescopic forks | Hydraulic telescopic fork of Ø36mm. |
| Rear suspension | Swingarm (monocross) | Mono-shock shock absorber |
| Front brakes | Expanding brake (drum brake) | Single disc |
| Rear brakes | Expanding brake (drum brake) | Single disc |
| Diameter (mm) | 110 | 145 |
| Frame type | Steel tube backbone | Double cradle steel tube |
| Front tyre | - | 2.50-15 |
| Rear tyre | - | 3.00-12 |
| Front wheel travel (mm) | 110 | - |
| Rear wheel travel (mm) | 95 | - |
| Other | ||
| Starter | Kick | Kick |
| Color options | - |
|
| Dimensions | ||
| Wheelbase (mm) | 1,055 | 1,100 |
| Dry weight (kg) | 57 | 46 |
| Power/weight ratio | 0.0561 | - |
| Overall height (mm) | 880 | 995 |
| Overall length (mm) | 1,540 | 1,596 |
| Overall width (mm) | 640 | 685 |
| Seat height (mm) | 635 | 740 |
| Performance | ||
| Fuel capacity (l) | 4.9 | 2.5 |