Yamaha YZF R1

After redesigning the Genesis engine to create a more compact engine by raising the gearbox input shaft and allowing the gearbox output shaft to be placed beneath it. This "stacked gearbox" was followed by other manufacturers.

As the 600 cc version of the R1 super bike. The 1999 R1 saw only minor changes, apart from paint and graphics. Cycle World tests recorded a 0 to 60 mph (0 to 97 km/h) time of 3.0 seconds, 0 to 1⁄4 mi (0.00 to 0.40 km) time of 10.31 seconds at 139.55 mph (224.58 km/h), and a top speed of 170 mph (270 km/h). The 2004 R1 weighs 172 kg (379 lb) dry.

. Combined with the changes to the frame, this helped to eliminate the tendency of the handlebars to shake violently during rapid acceleration or deceleration on less-than-perfect surfaces, a phenomenon known as speed wobble or a tank slapper.

Was announced on 8 October 2006. It had an all-new inline-four engine, going back to a more conventional four-valve-per-cylinder design rather than Yamaha's trademark five-valve Genesis layout.

. Power at the rear wheel was 156.7 hp (116.9 kW) @ 10,160 rpm.

. The new R1 took engine technology from the M1 MotoGP bike with its crossplane crankshaft, making the 2009 R1 the first production sports bike to use a crossplane crankshaft. R1, resulting in lower weight and aiding mass centralisation. The rear shock absorber on the 2009 offers variable speed damping, as well as easy-to-tweak screw-adjustable preload.

The Yamaha YZF-R1 received traction control and a redesigned nose, and a special edition 50th Anniversary R1 was released. The special edition commemorates the participation of Yamaha in MotoGP, and its colours are inspired by the Assen TT-winning MotoGP bike.