| Attribute | Yamaha YZ 125 2006 × | Beta RR 125 Motard 2008 × |
|---|---|---|
| General | ||
| Production from (year) | 2006 | 2008 |
| Make | Yamaha | Beta |
| Model | Yamaha YZ 125 | Beta RR 125 Motard |
| Category | Cross / motocross | Super motard |
| Engine and transmission | ||
| Engine type | V2, four-stroke | Single cylinder, four-stroke |
| Fuel system | Carburettor. Mikuni TMX38 | Carburettor. Mikuni UCAL 5Nh ø26-38 |
| Displacement (cm³) | 124 | 124 |
| Cooling system | Liquid | - |
| Transmission type,final drive | Chain | - |
| Bore (mm) | 54 | 54 |
| Stroke (mm) | 54.5 | 54 |
| Gearbox | 5-speed | 5-speed |
| Fuel control | - | Single Overhead Cams (SOHC) |
| Ignition | CDI | - |
| Clutch | Wet, multiple-disc | Wet multi-disc clutch |
| Lubrication system | Premix | Forced with pump |
| Compression | 8.6:1 | 10.0:1 |
| Chassis | ||
| Front suspension | Telescopic fork | Hydraulic fork with ø41 mm shaft |
| Rear suspension | Swinging arm (link-type monocross) | Monoshock with adjustable spring preload |
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Single disc |
| Diameter (mm) | 245 | 220 |
| Frame type | - | steel double cradle frame |
| Front tyre | 80/90-M21 | 110/80-17 |
| Rear tyre | 100/90-M19 | 130/80-17 |
| Front wheel travel (mm) | 300 | 250 |
| Rear wheel travel (mm) | 125 | 205 |
| Other | ||
| Starter | Kick | Electric & kick |
| Dimensions | ||
| Wheelbase (mm) | 1,443 | 1,370 |
| Dry weight (kg) | 86 | 103 |
| Overall height (mm) | 1,318 | 1,230 |
| Overall length (mm) | 2,139 | 2,065 |
| Overall width (mm) | 827 | 820 |
| Seat height (mm) | 998 | 920 |
| Ground clearance (mm) | 388 | 310 |
| Performance | ||
| Reserve fuel capacity (l) | - | 1 |
| Fuel capacity (l) | 8 | 6 |