Comparison of Beta RR 125 4T and Beta RR 50 Alu [S]ave
| Attribute |  Beta RR 125 4T × |  Beta RR 50 Alu × |
|---|---|---|
| General | ||
| Production from (year) | 2006 | 2006 |
| Make | Beta | Beta |
| Model | Beta RR 125 4T | Beta RR 50 Alu |
| Category | Enduro / offroad | Enduro / offroad |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, two-stroke |
| Fuel system | Carburettor. Mikuni UCAL 5Nh ø26-38 | Carburettor. Dell´Orto PHBN 16 FS |
| Displacement (cm³) | 124 | 49.7 |
| Cooling system | Air | Liquid |
| Transmission type,final drive | - | Chain |
| Bore (mm) | 54 | 40.3 |
| Stroke (mm) | 54 | 39 |
| Gearbox | 5-speed | 6-speed |
| Fuel control | Single Overhead Cams (SOHC) | - |
| Ignition | Electronic | Electronic |
| Lubrication system | - | Mixing with mechanical pump, fuel 1,5% |
| Compression | 10.0:1 | - |
| Chassis | ||
| Front suspension | Hydraulic fork | Hydraulic fork |
| Rear suspension | Monoshock with adjustable spring preload | Monoshock with adjustable spring preload |
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Single disc |
| Diameter (mm) | 220 | 220 |
| Frame type | - | Aluminium perimetric plate |
| Front tyre | 80/90-21 | 80/90-21 |
| Rear tyre | 120/90-18 | 110/80-18 |
| Front wheel travel (mm) | 250 | 245 |
| Rear wheel travel (mm) | 270 | 270 |
| Dimensions | ||
| Wheelbase (mm) | 1,370 | 1,395 |
| Dry weight (kg) | 103 | 85 |
| Overall height (mm) | 1,215 | 1,210 |
| Overall length (mm) | 2,070 | 2,030 |
| Overall width (mm) | 820 | 860 |
| Ground clearance (mm) | 320 | 320 |
| Performance | ||
| Reserve fuel capacity (l) | 1 | - |
| Fuel capacity (l) | 6 | - |
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