In 1998, the British motorcycle manufacturer launched the Triumph Speed Triple, a naked motorcycle that debuted in 1997 as a complete redesign of its predecessor. Also, compared to its predecessor, the Speed Triple T509 was fitted with a new fuel injection system.
  In the visual department, the Speed Triple T509 was almost identical to the 1999 Speed Triples and shared many components, like the dual round headlight design and single-sided swingarm. Some differences included the removal of the T509 Decal on the rear panel and the addition of a header cross-over pipe.
  The 1998 T509 model had standard features, such as a twin round headlight system, a two-piece dual seat with an optional passenger seat cover, a single-sided exhaust system, and lightweight three-spoke aluminum wheels.
  The bike was built on a lightweight aluminum frame with a 45 mm USD adjustable fork on the front and an adjustable shock absorber on the rear, offering excellent suspension performance and handling.
  As for the braking performance, the bike packed two 320 mm discs with four-piston calipers on the front wheel and a 220 mm disc with a dual-piston caliper on the rear wheel, delivering excellent stopping power.
  In the performance department, the 1998 Triumph Speed Triple T509 had installed an 855cc four-stroke three-cylinder liquid-cooled engine with a fuel injection system in charge, delivering 98 hp at 9,000 rpm and 85 Nm (63 lb-ft) torque at 6,700 rpm.