TRIUMPH Speed Four (2005-2006) Specs, Performance & Photos

The Triumph Speed Four was a standard or naked machine manufactured from 2002 to 2006. The bike was the non-faired brother of the Triumph TT600 that debuted in 1999.

Like the Speed Triple, the Speed Four had similar twin-round headlights on the front but a different engine and frame. It packed the clip-on handlebar of the TT600 model instead of the motocross-inspired unit of the Speed Triple.

Besides the cam profiles, ignition, fuel injection mapping, front spring rate, and other minor modifications, the Speed Four was mechanically similar to its TT600 predecessor and packed race-ready suspensions.

Over its production period from 2002 to 2006, Triumph manufactured 4,606 Speed Fours, from which 1,011 models were produced for the American market, and only 54 units were made for the Canadian market.

In the visual department, the 2005 machine packed the same standard features as previous models, such as two-round headlights, a single seat with a passenger cover, a single exhaust system, three-spoke aluminum wheels, and a new Neon Blue paint scheme.

Underneath its fuel tank, the 2005 Triumph Speed Four had installed a 599cc four-stroke four-cylinder liquid-cooled engine fed by an electronically controlled fuel injection system, delivering 98 hp at 11,750 rpm and 68 Nm (50 lb-ft) torque at 10,500 rpm.

As for the braking power, the bike packed two 310 mm floating discs with four-piston calipers on the front and a 220 mm disc with a single-piston caliper on the rear, offering excellent stopping power.