| Attribute | Yamaha YZ 85 2005 × | Beta Ark Liquid Cooled 50 × |
|---|---|---|
| General | ||
| Production from (year) | 2005 | 2004 |
| Make | Yamaha | Beta |
| Model | Yamaha YZ 85 | Beta Ark Liquid Cooled 50 |
| Category | Cross / motocross | Scooter |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Fuel system | Carburettor | - |
| Displacement (cm³) | 85 | 49.2 |
| Cooling system | Liquid | Liquid |
| Transmission type,final drive | Chain | - |
| Bore (mm) | 54 | - |
| Stroke (mm) | 0 | - |
| Gearbox | 5-speed | Automatic |
| Chassis | ||
| Front suspension | Kayaba | Hydraulic fork |
| Rear suspension | Kayaba | Hydraulic shock absorber with adjustable spring setting |
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Single disc |
| Diameter (mm) | 190 | 190 |
| Frame type | - | Iron |
| Front tyre | - | 130/60-13 |
| Rear tyre | - | 140/60-13 |
| Other | ||
| Color options |
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| Performance | ||
| Reserve fuel capacity (l) | - | 7.5 |