Comparison of Beta Ark 50 AC and Yamaha YZ 85 2006 [S]ave
| Attribute |  Yamaha YZ 85 2006 × |  Beta Ark 50 AC × |
|---|---|---|
| General | ||
| Production from (year) | 2006 | 2007 |
| Make | Yamaha | Beta |
| Model | Yamaha YZ 85 | Beta Ark 50 AC |
| Category | Minibike, cross | Scooter |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Fuel system | - | Carburettor. Dell´Orto PHVA 12 HS |
| Displacement (cm³) | 84.7 | 49 |
| Cooling system | Liquid | Air |
| Transmission type,final drive | Chain | Belt |
| Bore (mm) | 47.5 | 40 |
| Stroke (mm) | 47.8 | 39.2 |
| Gearbox | - | Automatic |
| Ignition | - | Electronic Ducati 12V - 60W |
| Clutch | - | Dry automatic centrifugal type |
| Lubrication system | - | With mechanical pump - gasoline-oil 1,5% (with synthetic oil) |
| Compression | 8.2:1 | 12.0:1 |
| Chassis | ||
| Front suspension | Telescopic fork | Hydraulic fork with ø32 mm shaft |
| Rear suspension | Swinging arm (monocross) | Monoshock with adjustable spring preload |
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Expanding brake (drum brake) |
| Diameter (mm) | 146 | 110 |
| Frame type | - | tubular steel |
| Front tyre | 70/100-17 | 130/60-13 |
| Rear tyre | 90/100-14 | 130/60-13 |
| Front wheel travel (mm) | - | 32 |
| Other | ||
| Color options | - |
|
| Dimensions | ||
| Wheelbase (mm) | 1,255 | 1,240 |
| Dry weight (kg) | 66 | 84 |
| Overall height (mm) | 1,161 | 1,150 |
| Overall length (mm) | 1,818 | 1,740 |
| Overall width (mm) | 758 | 750 |
| Seat height (mm) | 864 | 830 |
| Ground clearance (mm) | 351 | 215 |
| Performance | ||
| Reserve fuel capacity (l) | - | 1.3 |
| Fuel capacity (l) | - | 7.5 |
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