YAMAHATDR 250 1988 - 1993

　　The Yamaha TDR 250 was a middleweight dual-sports motorcycle made by Yamaha from 1988 until 1993. It was a street-legal machine powered by a 249cc naturally-aspirated parallel twin-cylinder engine borrowed from the first-generation TRZ 250 model.

　　The bike's engine had a Yamaha Power Valve System, CDI ignition, and digital spark advanced. In addition, most parts, such as the engine, transmission, and electrical components, were interchangeable with the TZR and R1-Z models.

　　The TDR 250 was intended to deliver agile handling and fast acceleration on paved roads but also off-road trails. In addition, a 240cc version of the bike was manufactured exclusively for the French market.

　　In 1988, the Japanese motorcycle manufacturer launched the Yamaha TDR 250, a motorcycle fitted with standard features, such as a rectangular headlight integrated into a front fairing, a small windscreen, a one-piece dual seat with passenger grab rails, an under-seat-mounted exhaust system, and lightweight wire-spoke wheels.

　　The bike's suspension system comprised an air-assisted seven-way preload-adjustable telescopic fork on the front and a preload-adjustable shock absorber on the rear, providing excellent handling.

　　The braking power was achieved by a 320 mm disc with a dual-piston caliper on the front wheel and a 210 mm disc with a single-piston caliper on the rear wheel.

　　As for the power figures, the 1988 Yamaha TDR 250 had installed a 249cc four-stroke parallel-twin liquid-cooled engine underneath its fuel tank, delivering 46 hp at 9,500 rpm and 36 Nm (27 lb-ft) torque at 8,500 rpm.