The SC28 originated from an advanced research stage model Honda referred to internally as the CBR750RR. To match the acceleration of rival flagship sport bikes, Honda engineers increased the stroke of an inline four-cylinder 750 cc engine to raise displacement to 893 cc. The resulting machine had a dry weight of 185 kg and a wet weight of 205 kg — only 1.8 kg heavier than Honda's own CBR600F2, while the next-lightest over-750 cc machine of the era, the Yamaha FZR1000, was heavier by 34 kg. The wheelbase measured 1,405 mm, and the overall silhouette closely resembled that of the advanced research prototype.
The SC28 used an 893 cc inline-four engine, and the chassis philosophy prioritised a low overall mass over raw peak power figures, a philosophy that distinguished the CBR900RR from the heavier superbikes it was designed to outmanoeuvre in real-world riding conditions.
The 1994 model received a revised shift drum to address notchy gear changes. The second generation, introduced in 1995, brought revised damping and spring rates along with a compression adjuster on the front fork. Cosmetic updates included what became known as "fox eyes" — irregular-shaped multi-reflector headlights set further back within a restyled upper fairing — and the use of fewer aerodynamic fairing speed holes. Materials were refined with an aluminium-to-magnesium change for the cylinder head cover and steel-to-aluminium for the upper cowl stay. Footpegs followed the firmer, slimmer pattern of the RC45 race bike.
The third generation arrived in 1996 with a 1 mm bore increase raising displacement to 919 cc. Honda also revised the chassis for greater torsional rigidity using larger, thinner-walled extrusions in both the swingarm and frame. Suspension geometry was recalibrated with a 5 mm raised swingarm pivot and revised shock and fork internals. Handlebar position moved 10 mm higher and five degrees rearward to improve rider comfort.
The fourth generation in 1998 brought a stiffer frame returning closer to the original SC28 character, a redesigned fairing with dual-reflector headlights, new windscreen and mirrors, larger front brake rotors with new calipers, and an engine rebuilt to approximately 80 percent new internals aimed at reducing internal friction and weight. Cylinder bores received an aluminium composite treatment, and a new instrument cluster incorporated an LCD tachometer, speedometer, and readouts for temperature and dual trip meters.
The fifth generation, introduced in 2000 as the CBR929RR in North America, featured a completely new 929 cc engine with fuel injection, larger valves at a narrower angle, an all-titanium exhaust system with Honda's HTEV technology, 330 mm front disc rotors, a switch from 16-inch to 17-inch wheels, and an inverted front fork.
The sixth and final generation appeared in 2002 as the CBR954RR in North America and Japan. A bore increase from 74 to 75 mm raised displacement to 954 cc. The chassis was strengthened with a stiffer frame and swingarm, footpegs were raised for greater lean angle clearance, and restyled bodywork gave the bike a sleeker profile. Rear-wheel power measured 135.8 hp with 70.9 lb·ft of torque, and dry weight dropped to 168 kg. John McGuinness won the 2001 Macau Grand Prix aboard a CBR954RR. The CBR900RR lineage was succeeded by the CBR1000RR in 2004.
The CBR900RR occupies an unusual place in motorcycle culture beyond its technical achievements. The bike features as the central subject of French author Brigitte Giraud's prizewinning autobiographical novel Vivre vite (Live Fast), published in 2022, which explores the death of Giraud's husband in a road accident while riding one of the motorcycles.
The original SC28 reframed the superbike category by demonstrating that outright displacement and weight did not need to scale together. Its combination of 893 cc displacement with a weight approaching that of a 600 cc machine compelled rivals to pursue the same philosophy throughout the 1990s, effectively creating the modern class of lightweight open-class sport bikes. The CBR900RR remained in production across six distinct generations spanning twelve years, consistently influencing the direction of Japanese superbike development.