2004 Suzuki GSX-R 600, Available Soon! Ground up engineering... The 2004 Suzuki GSX-R600 was completely redesigned from the ground up. Featuring titanium valves, 32 bit ECU, an all-new 15 mm narrower twin-spar black-coated frame, a 20mm narrower fuel tank, 100mm closer together foot pegs, new rear shock and fully adjustable inverted 43mm front forks and new 4-piston radial-mounted front brake calipers operated by a radial-piston master cylinder.