to . Other revisions included a smaller alternator, the addition of a throttle position sensor, extra clutch plates, and a larger exhaust. The only changes for the 1997 model were graphics and color options. In 1998, Honda continued subtle refinements in the fourth generation CBR900RR's chassis. It got a stiffer frame more like the original, offset on the triple clamp reduced by . Brakes got larger rotors on the front and new calipers and ergonomics were revised with raised footpegs. The engine got revised with 80 percent new internals in an effort to reduce friction and weight. Cylinders bore got an aluminum composites treatment and new pistons. It also got a larger radiator and a new exhaust header in stainless steel. CBR929RR (929cc) SC44 The fifth-generation CBR900RR, or CBR929RR in North America, was introduced in 2000. It has a completely new engine, more oversquare with lighter internals. The engine also featured fuel injection and larger valves set at a narrower angle. A new all-titanium exhaust system equipped with HTEV was incorporated. The swingarm is mounted to the engine with bracing under the engine. Larger front disk rotors 330 mm mounted were also fitted and the wheel diameter was increased from 16 inches to 17 inches. The new front fork now used upside-down construction. CBR954RR (954cc) SC50 The sixth generation CBR900RR, or CBR954RR in North America and Japan, was introduced in 2002. The cylinder bore was enlarged from , increasing capacity to . Larger fuel injectors, larger radiator, re-mapped electronic fuel injection, and a more powerful ECU were added. The restyled bodywork and fairings gave a sleeker look. The frame as well as the swingarm were strengthened, and the footpegs raised to allow for greater lean angles. Front disc size increased to 330 mm. Dry weight was reduced to and the wet weight to . Power at the rear wheel is and torque. John McGuinness won the Macau Grand Prix in 2001 riding a CBR954RR. Successor The CBR900RR was replaced by the CBR1000RR in 2004. Specifications All specifications are manufacturer claimed unless specified. References External links CBR900RR Sport bikes Motorcycles introduced in 1992