| MODEL | YAMAHA DT 125RE 1999 |
| Year | 1999 |
| Engine Type | Two stroke, single cylinder, reed-valve |
| Displacement / Capacity | 123 cc / 7.5 cu in |
| Bore X Stroke | 56 x 50 mm |
| Compression Ratio | 6.8:1 |
| Cooling System | — |
| Max Power | 10.8 kW / 14.7 hp @ 7000 rpm |
| Max Torque | 16.3 Nm / 1.7 kgf-m @ 7000 rpm |
| Ignition | CDI |
| Induction | Mikuni 28 SS carburetor |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | Autolube |
| Gear Box | 6 speed |
| Clutch | Wet multiplate |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | 41 mm telescopic forks, 170 mm / 6.6 in travel |
| Rear Suspension | Monocross linkage |
| Front Brakes | Single 230 mm disc |
| Rear Brakes | Single 220 mm disc |
| DIMENSION SPECS | |
| Overall Length | 2135 mm / 81.0 in |
| Overall Width | 820 mm / 32.2 in |
| Overall Height | 1255 mm / 49.4 in |
| Seat Height | 885 mm / 34.8 in |
| Wheelbase | 1415 mm / 55.7 in |
| Ground Clearance | 270 mm / 10.6 in |
| Dry Weight | 116 kg / 255.7 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 80/90-21 |
| Rear Tyre | 110/80-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 10 Litres / 2.2 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The 1999 DT125RE repeats the 1998 specification on the opened page: Mikuni-carbureted two-stroke with 14.7 hp, 41 mm forks and monocross linkage.
