TRIUMPHSpeed Four 2004 - 2005

　　In 2004, the British motorcycle manufacturer launched the Triumph Speed Four, a naked machine made by Triumph since 2002. It was released as a non-faired sibling of the TT600 sports bike and remained in production until 2006 when it was succeeded by the Street Triple model.

　　In the mechanical department, the Speed Four was similar to the TT600, except for the cam profiles, fuel injection mapping, ignition, front spring rate, and other minor parts. Also, the Speed Four packed a race-ready, fully adjustable suspension.

　　Compared to previous models, the 2004 Speed Four came with a new vibrant Racing Yellow paint scheme that joined the already owned Jet Black and Roulette Green. Besides that, the bike was identical to previous models.

　　In the aesthetic department, the bike had standard features, such as two round headlights, a small cluster cowl mounted above the lights, a one-piece seat with a passenger seat cover, a four-into-one exhaust system with a silencer mounted on the right side, and three-spoke lightweight aluminum wheels.

　　The 2004 Triumph Speed Four had its heartbeat set by a 599cc four-stroke four-cylinder liquid-cooled engine with a fuel injection system feeding the pistons, boasting 98 hp at 11,750 rpm and 69 Nm (51 lb-ft) torque at 10,500 rpm.

　　The bike's suspension system comprised a 43 mm fully adjustable telescopic fork on the front and a fully adjustable shock absorber on the rear, providing excellent handling capabilities.