YAMAHA YZF-R6 (2004-2005) Specs, Performance & Photos

The Yamaha YZF-R6 was a sports bike manufactured by Yamaha from 1999 to 2020 and introduced as a super sport version of the YZF-R1 and as a companion to the more street-orientated YZF-600R model.

In 2004, the Japanese motorcycle manufacturer released the Yamaha YZF-R6, a smaller brother to the R1 superbike, which delivered almost the same amount of performance and thrill. The 2004 model received multiple revisions to the engine, such as new camshafts, bigger throttle bodies, a better fuel injection system, and new intake funnels.

Also, the 2004 model featured the Deltabox revision, which made the bike narrower and stiffer thanks to a clever manufacturing technique such as the Yamaha Controlled Filling (CF) aluminum die-cast procedure that allowed the chassis to be assembled with two welds rather than 16.

From the factory, the bike rolled on a set of five-spoke cast-aluminum wheels that featured two 298 mm discs with four-piston calipers on the front and a 220 mm disc with a single-piston caliper on the rear that provided strong braking performance.

For suspension, the model packed a 43 mm adjustable telescopic fork on the front wheel and an adjustable piggyback monoshock on the rear.

As for power, the 2004 Yamaha YZF-R6 had its heartbeat set by a 599cc four-stroke four-cylinder liquid-cooled engine that delivered an output power of 123 hp at 13,000 rpm and 68 Nm (50 lb-ft) of torque available at 12,000 rpm.