| Attribute | Beta RR 50 Motard Racing × | Yamaha YZ 85 2007 × |
|---|---|---|
| General | ||
| Production from (year) | 2007 | 2007 |
| Make | Beta | Yamaha |
| Model | Beta RR 50 Motard Racing | Yamaha YZ 85 |
| Category | Super motard | Cross / motocross |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Fuel system | Carburettor. Dell´Orto PHBN 16 FS | Carburettor. PWK28 x 1 |
| Displacement (cm³) | 49.7 | 84.7 |
| Cooling system | Liquid | Liquid |
| Transmission type,final drive | Chain | Chain |
| Bore (mm) | 40.3 | 47.5 |
| Stroke (mm) | 39 | 47.8 |
| Gearbox | 6-speed | 6-speed |
| Ignition | Electronic AET 12V - 85W | CDI |
| Clutch | Wet multi-disc clutch | - |
| Lubrication system | Mixing with mechanical pump, fuel 1,5% (with synthetic oil) | - |
| Compression | 12.0:1 | 8.2:1 |
| Chassis | ||
| Front suspension | Hydraulic fork with ø36 mm shaft | Telescopic Fork, coil spring/oil damper, 10.8´ |
| Rear suspension | Monoshock with adjustable spring preload | Swingarm (link, suspension), coil spring/gas-oil damper, 11.3´ |
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Single disc |
| Diameter (mm) | 220 | 146 |
| Frame type | steel double cradle frame | - |
| Front tyre | 110/80-17 | 70/80-M17 |
| Rear tyre | 130/70-17 | 90/90-M14 |
| Front wheel travel (mm) | 36 | - |
| Other | ||
| Color options |
| - |
| Dimensions | ||
| Wheelbase (mm) | 1,325 | 1,257 |
| Dry weight (kg) | 85 | 66 |
| Overall height (mm) | 1,120 | 1,161 |
| Overall length (mm) | 1,960 | 1,821 |
| Overall width (mm) | 800 | 757 |
| Seat height (mm) | 910 | 864 |
| Ground clearance (mm) | 355 | 351 |
| Performance | ||
| Reserve fuel capacity (l) | 1 | - |
| Fuel capacity (l) | 6 | 4.92 |