| Attribute | Yamaha TDR 125 2002 × | Beta Alp 125 2012 × |
|---|---|---|
| General | ||
| Production from (year) | 2002 | 2012 |
| Make | Yamaha | Beta |
| Model | Yamaha TDR 125 | Beta Alp 125 |
| Category | Allround | Enduro / offroad |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, four-stroke |
| Fuel system | - | Carburettor. Mikuni BST 31 42AD |
| Displacement (cm³) | 125 | 124 |
| Power (kw) | 10.9 | - |
| Cooling system | Liquid | Air |
| Transmission type,final drive | - | Chain |
| Torque (Nm) | 14.7 | - |
| Bore (mm) | 56 | 66 |
| Stroke (mm) | 50.7 | 58.2 |
| Gearbox | - | 5-speed |
| Fuel control | - | Single Overhead Cams (SOHC) |
| Clutch | - | Wet multi-disc |
| Lubrication system | - | Forced with pump |
| Compression | 6.6:1 | 9.4:1 |
| Chassis | ||
| Front suspension | - | Hydraulic fork, ø38 mm |
| Rear suspension | - | Monoshock with adjustable spring preload |
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Single disc |
| Diameter (mm) | 220 | 220 |
| Front tyre | 100/90-18 56P | 90/90-21 |
| Rear tyre | 130/80-17 65P | 120/80-18 |
| Front wheel travel (mm) | 180 | 170 |
| Rear wheel travel (mm) | 180 | 180 |
| Other | ||
| Starter | - | Electric & kick |
| Color options | - |
|
| Dimensions | ||
| Wheelbase (mm) | 1,405 | 1,370 |
| Dry weight (kg) | 128 | 107 |
| Power/weight ratio | 0.0852 | - |
| Overall height (mm) | 1,295 | 1,170 |
| Overall length (mm) | 2,120 | 2,085 |
| Overall width (mm) | 840 | 820 |
| Seat height (mm) | 850 | 830 |
| Ground clearance (mm) | 270 | 300 |
| Performance | ||
| Reserve fuel capacity (l) | - | 1.5 |
| Fuel capacity (l) | - | 6.8 |