In 2004, the Japanese motorcycle manufacturer launched the Yamaha DT 125X, a motorcycle based on the earlier DT 125 version. The 125X model was more modern and more road-oriented due to its tires.
The Yamaha DT 125 debuted in 1974 as the DT 125A and continued production until 2008. The American market received the last DT 125H model in 1981. Over the years, the DT 125 has undergone numerous upgrades and modifications, almost every time, with a new suffix at the end of its name.
In the aesthetic department, the DT 125X had fitted standard features, such as wire-spoke wheels with road tires, an under-seat-mounted exhaust system, a one-piece dual seat with passenger grab handles, a high-mounted front plastic fender, and a rectangular headlight integrated into a small front cowl.
The bike was built around a semi-double-cradle steel frame with a 41 mm telescopic fork on the front that offered 120 mm of travel. The rear end was handled by a Mono-Cross shock absorber with 200 mm of travel, offering excellent handling capabilities.
As for the power figures, the 2004 Yamaha DT 125X had its heartbeat set by a 123cc two-stroke single-cylinder liquid-cooled engine managed by a Mikuni carburetor, boasting 15 hp with a peak force at 7,000 rpm and 16 Nm (12 lb-ft) torque at 7,000 rpm.