| MODEL | YAMAHA DT 125 X 2005 - 2007 |
| Year | 2005 - 2007 |
| 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 carburettor |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | Autolube |
| Gear Box | 6 speed |
| Clutch | Wet multiplate |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Semi double cradle steel frame |
| Front Suspension | 41 mm telescopic forks, 120 mm / 4.7 in travel |
| Rear Suspension | Monocross linkage |
| Front Brakes | Single 298 mm disc |
| Rear Brakes | Single 220 mm disc |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 886 mm / 34.8 in |
| Wheelbase | 1269 mm / 50 in |
| Ground Clearance | — |
| Dry Weight | 122 kg / 269 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 120/70-17 |
| Rear Tyre | 140/60-17 |
| FUEL SYSTEM | |
| Fuel Capacity | 10.7 Litres / 2.8 US gal |
| Fuel Consumption | — |
| Top Speed | — |
A road-biased 125 cc two-stroke supermoto-style machine of the mid-2000s, built on a steel semi double-cradle frame with a 17-inch wheel set and a disc brake at each end. It paired a reed-valve single with a six-speed gearbox, aimed at learner-legal riders wanting a lightweight, sporty bike.
