Yamaha YZF-R1
The Yamaha YZF -R1 - R1 short - is a motorcycle category supersport / superbike from the R- series of the Japanese manufacturer Yamaha Motor.
History
1997-1999
The first model was unveiled at the EICMA motorcycle show in Milan on 15 September 1997 to the world and was the internal code number. 08R. The R1 was a radically redesigned motorcycle. The engine performance at launch was 110 kW ( 150 hp) with a maximum torque of 108 Nm at a dry weight of 177 kg. With 65.3 kilograms of compressed 11,8:1, 998 cc, engine fell by 9.5 kg lighter and to 81 mm shorter than that of its predecessor YZF 1000 R Thunderace. The fuel- air mixture delivered four 40 mm Mikuni carburetors. Wherein the motor housing and cylinder unit has been cast in one piece, serving as a load-bearing chassis member. The chassis consisted of a rigid aluminum twin-spar frame, an upside -down fork and an aluminum swingarm with top pull. A 1395 mm short wheelbase, a steeper steering head angle of 66 ° and only 92 mm trail were other milestones of the radical machine. In addition, the very short construction engine was 582 mm to a very long swingarm and thereby brought more traction.
2000-2001
The power delivery of the first generation of the R1 offered a disadvantage: From 3,000 min -1, the torque increased rapidly and unevenly. This repeatedly led to a serious fall by a wegrutschendes rear, as the abrupt increase in torque when accelerating out of corners is difficult to manage. Often the discussions led to so-called high-side, which often has serious injuries and R1 in motorcyclists circles the unpleasant nickname " Widowmaker " earned. This problem they tried to solve with a more homogeneous performance characteristics from the 2002 model year. Thus, the Yamaha R1 had no longer as torquey and wild as the model years 1998-2001, but the number of high-side accidents decreased. In the 2002s and 2003s models also the throttle response was gentle, what the driveability zugutekam.
In model year 2000, was "R1" revised on numerous points. Among them, for example, fell less mechanical engine noise, a reduction in weight by 2 kg improved ( more linear ) power delivery, lighter titanium end muffler, improved transmission function, less plastic parts and modified aerodynamics.
2002-2003
2002 Yamaha introduced the second - generation R1, in almost all parts are new or further developed. The engine, now with fuel injection, a new fairing, a bolted (previously welded ) rear subframe and a redesigned Deltabox III framework. The maximum power of 112 kW was Einspritzermotors ( 152 hp ) at 10,500 min -1.
2004-2005
In 2004 appeared the third - generation R1 in response to the heavily revised in 2003 Suzuki GSX- R 1000, which emerged as a superior winner in all comparative tests of the trade press. In addition, Honda introduced its new 2004 CBR 1000 RR Fireblade before, which was also now strengthened to a full liter of displacement. Once again, the R1 has been completely revised in the next generation. The Japanese engineers succeeded by a higher compression ratio, larger cylinder bore and shorter stroke, larger free valve cross sections and fine work on almost any engine detail to increase the peak power of the now very high-revving engine by 13% to 172 hp. Also new was a Ram Air Dynamic pressure system, with which about 10 hp more power were achieved at full speed. The aerodynamics have been improved by an integrated into the rear muffler. In addition, for the first time a steering damper was fitted as standard.
2006
The fourth generation change took place in 2006. Once again, the peak power by revisions to the intake and exhaust ports by three to 175 hp increase. A 20 mm longer swing arm and the Deltabox context of the fifth generation were further changes. In addition to the normal R1 is a limited edition " YZF- R1 SP" with special painting, high quality Öhlins shock elements as well as easy and as noble Marchesini forged alloy wheels were offered.
2007
For the 2007 model year, a significantly revised fifth -generation YZF -R1 was introduced at the Intermot in Cologne. Here, the new version leans heavily on the technical YZF -R6 class of 2006. So Yamaha fitted with the new R1 and the drive-by -wire system YCC -T ( electronic throttle control ), in which the throttle is opened and closed by means of the servomotor via cable. In addition, it has electronically adjustable in length intake pipes ( " YCC - I"). After a long 5 -valve Yamaha tradition returns again to 4 valves per cylinder back to help the engine in the lower and medium engine speed range for more torque. Other new features are a 6-piston front brake, a steering damper and a slipper clutch. Yamaha provides for the new YZF-R1 a maximum output of 132 kW ( 180 hp ) to (139 kW ( 189 hp) with dynamic pressure system) at a dry weight of 177 kg.