Honda CBR900RR
Encyclopedia
The Honda CBR900RR, also known as the Fireblade, is a large displacement sport bike
introduced in 1992 by Honda
. It was the first of the Honda Fireblade
models and was designed by Tadao Baba
.
, and 76 lb (34.5 kg) lighter than the next-lightest open-class machine at the time, the Yamaha FZR1000
. Minor changes to the 1994 model included an improved shift drum to cure notchy shifting, and steadier mirrors.
In a move to refine the CBR900RR's handling traits on bumpy roads, the 1995 model's suspension was upgraded with revised spring and damping rates, and a compression adjuster was added to the front fork. More aggressive bodywork incorporated a "cut reflector" design headlight and fewer of the CBR's unique fairing holes. Slimmer and firmer footpegs were patterned after the RC45 and a shift linkage replaced the original model's backward pedal. A new instrument panel included an electronic speedometer that measured speed from the countershaft sprocket. The only engine change in 1995 was the replacement of the aluminum valve cover with a magnesium piece.
In 1998, Honda continued subtle refinements in the CBR919RR's chassis. It saw frame stiffness closer to the original model's, revised suspension internals, and 5 mm (0.196850393700787 in) less triple clamp offset (an almost universal aftermarket upgrade to previous models). New brake calipers acted on larger front discs, the fairing was re-shaped and raised footpegs subtly changed ergonomics again. Eighty percent of the engine's internals were all-new to reduce weight and minimize friction; other updates included redesigned combustion chambers and porting, aluminum composite cylinders, new pistons, a smaller and lighter clutch pack, revised gearbox ratios, larger radiator, and a new stainless steel exhaust header.
and fairings
were reworked for a sleeker, more aerodynamic feel. The frame
was strengthened and a more rigid swingarm
added and the riding position/pegs were raised to allow for greater lean angles. Dry weight reduced to 168 kg (370.4 lb).
The CBR954RR was replaced by an all new CBR1000RR
in 2004.
Sport bike
A sport bike, also written as sportbike, is a motorcycle optimized for speed, acceleration, braking, and cornering on paved roads, typically at the expense of comfort and fuel economy in comparison to less specialized motorcycles...
introduced in 1992 by Honda
Honda
is a Japanese public multinational corporation primarily known as a manufacturer of automobiles and motorcycles.Honda has been the world's largest motorcycle manufacturer since 1959, as well as the world's largest manufacturer of internal combustion engines measured by volume, producing more than...
. It was the first of the Honda Fireblade
Honda Fireblade
The Honda Fireblade is a family of sport motorcycles manufactured by Honda since 1992. The first model was designed by Tadao Baba.*CBR900RR, 1992–1995*CBR919RR, 1996–1999*CBR929RR, 2000–2001*CBR954RR, 2002–2003...
models and was designed by Tadao Baba
Tadao Baba
Tadao Baba is a retired Japanese motorcycle engineer, the original designer of the Honda Fireblade.-Career:Baba joined Honda Motorcycles from High School in 1962, aged 18 - the company itself was only 14 years old. Working in the machinery section, he made crankcases and cylinder heads for Honda’s...
.
CBR900RR
The CBR900RR was introduced in 1992 and was fitted with an 893 cc inline-four engine. When introduced, it set a precedent for light weight in the super bike class. At 453 lb (205.5 kg) with a full tank of gas, the CBR900RR was just 4 lb (2 kg) heavier than Honda's own CBR600F2Honda CBR600F2
The Honda CBR600 F2 motorcycle, introduced in 1991 to replace the CBR600 Hurricane, or F1, was considered one of Honda's most modern and innovative sport bikes when it was released. Developing of the second generation CBR began in early 1989...
, and 76 lb (34.5 kg) lighter than the next-lightest open-class machine at the time, the Yamaha FZR1000
Yamaha FZR1000
The Yamaha FZR1000 is a motorcycle produced by Yamaha from 1987 to 1995. The 1989 version, crowned the "Bike of the Decade" by Cycle World, had 0-60 acceleration of 2.9 seconds, and a top speed of over 167 mph....
. Minor changes to the 1994 model included an improved shift drum to cure notchy shifting, and steadier mirrors.
In a move to refine the CBR900RR's handling traits on bumpy roads, the 1995 model's suspension was upgraded with revised spring and damping rates, and a compression adjuster was added to the front fork. More aggressive bodywork incorporated a "cut reflector" design headlight and fewer of the CBR's unique fairing holes. Slimmer and firmer footpegs were patterned after the RC45 and a shift linkage replaced the original model's backward pedal. A new instrument panel included an electronic speedometer that measured speed from the countershaft sprocket. The only engine change in 1995 was the replacement of the aluminum valve cover with a magnesium piece.
CBR919RR
1996 brought the first major changes to the CBR900RR. In order to achieve a more optimized balance of rigidity, Honda significantly altered the 1996 CBR's chassis and suspension. The frame and swingarm were fabricated from larger, thinner-walled extrusions for reduced torsional rigidity. The fork and shock internals were re-designed, and the swingarm pivot raised by 5 mm (0.196850393700787 in). Revised ergonomics brought the bars 10 mm (0.393700787401575 in) higher and swept back five degrees more than earlier models, along with a slimmer gas tank. Engine updates included a bump in displacement to 919 cc via a 1 mm (0.0393700787401575 in) bore increase, slightly higher compression, a curved radiator, larger exhaust, extra clutch plates, smaller alternator, and the addition of a throttle position sensor. The 1996 model carried over to 1997 unchanged except for the updates to color/graphics offerings.In 1998, Honda continued subtle refinements in the CBR919RR's chassis. It saw frame stiffness closer to the original model's, revised suspension internals, and 5 mm (0.196850393700787 in) less triple clamp offset (an almost universal aftermarket upgrade to previous models). New brake calipers acted on larger front discs, the fairing was re-shaped and raised footpegs subtly changed ergonomics again. Eighty percent of the engine's internals were all-new to reduce weight and minimize friction; other updates included redesigned combustion chambers and porting, aluminum composite cylinders, new pistons, a smaller and lighter clutch pack, revised gearbox ratios, larger radiator, and a new stainless steel exhaust header.
CBR929RR
The CBR929RR had a completely new 929 cc engine incorporating fuel injection, more oversquare cylinder dimensions, larger valves set at a narrower included angle, lighter internals, and an all-titanium, HTEV-equipped exhaust system. The "pivotless" chassis had the swingarm mounted to the engine cases but incorporated a brace underneath the engine. Updated suspension and brakes included an inverted front fork and 330 mm (13 in) front discs; and the 16 in (406.4 mm) front wheel was replaced for a more common 17 in (431.8 mm) wheel.CBR954RR
In 2002, a brand new engine was made which increased capacity to 954 cc which resulted in the CBR954 name. Larger injectors and radiator, re-mapped electronic fuel injection, and a more powerful computer were also added. The bodyworkCoachwork
Coachwork is the body of a horse-drawn coach or carriage, a motor vehicle , a railroad car or railway carriage. Usually reserved for bodies built on a separate chassis, rather than being of unitary or monocoque construction...
and fairings
Motorcycle fairing
A motorcycle fairing is a shell placed over the frame of some motorcycles, especially racing motorcycles and sport bikes, with the primary purpose to reduce air drag. The secondary functions are the protection of the rider from airborne hazards and wind-induced hypothermia and of the engine...
were reworked for a sleeker, more aerodynamic feel. The frame
Chassis
A chassis consists of an internal framework that supports a man-made object. It is analogous to an animal's skeleton. An example of a chassis is the underpart of a motor vehicle, consisting of the frame with the wheels and machinery.- Vehicles :In the case of vehicles, the term chassis means the...
was strengthened and a more rigid swingarm
Swingarm
A swingarm, or "swinging arm" is the main component of the rear suspension of most modern motorcycles and ATVs...
added and the riding position/pegs were raised to allow for greater lean angles. Dry weight reduced to 168 kg (370.4 lb).
The CBR954RR was replaced by an all new CBR1000RR
Honda CBR1000RR
The CBR1000RR, also known as the Fireblade, is a liquid-cooled inline four-cylinder sport bike that was introduced by Honda in 2004 to replace the CBR954RR.-Racing roots:...
in 2004.
Specifications
All specifications are manufacturer claimed unless specified.| Model | CBR900RR | CBR900RR | CBR919RR | CBR929RR | CBR954RR | |
|---|---|---|---|---|---|---|
| Years | 1993–1994 | 1995 | 1996–1999 | 2000–2001 | 2002–2003 | |
| Engine displacement | 893 cc | 893 cc | 919 cc | 929 cc | 954 cc | |
| Engine type | inline-4 | |||||
| Stroke | 4 | |||||
| Compression | 11:1 | 11:1 | 11.1:1 | 11.3:1 | 11.5:1 | |
| Bore x stroke | 70 by 58 mm (2.8 by 2.3 in) | 70 by 58 mm (2.8 by 2.3 in) | 71 by 58 mm (2.8 by 2.3 in) | 74 by 54 mm (2.9 by 2.1 in) | 75 by 54 mm (3 by 2.1 in) | |
| Fuel control | 4x Keihin CV carbs | 4x Keihin CV carbs | 4x 38 mm Keihin CV carbs | PGM-FI (Fuel Injection) w/ Automatic Choke | PGM-FI (Fuel Injection) w/ Automatic Enricher Circuit | |
| Cooling system | liquid | |||||
| Gearbox | 6-speed | |||||
| Final drive | chain | chain | #525 O-Ring Sealed Chain | #530 O-Ring Sealed Chain | #530 O-Ring Sealed Chain | |
| Dry weight | 396.8 lb (180 kg) | 379 lb (171.9 kg) | 370 lb (167.8 kg) | |||
| Seat height | 810 mm (31.9 in) | 32.3 in (820.4 mm) | 32.1 in (815.3 mm) | |||
| Wheelbase | 1405 mm (55.3 in) | 54.9 in (1,394.5 mm) | 55.1 in (1,399.5 mm) | |||
| Front suspension travel | 4.7 in (119.4 mm) | 4.7 in (119.4 mm) | 4.7 in (119.4 mm) | |||
| Rear suspension travel | 4.9 in (124.5 mm) | 5.3 in (134.6 mm) | 5.3 in (134.6 mm) | |||
| Front tire | 130/70-ZR16 | 130/70-ZR16 | 130/70-ZR16 | 120/70-ZR17 | 120/70-ZR17 | |
| Rear tire | 180/55-ZR17 | 180/55-ZR17 | 180/55-ZR17 | 190/50-ZR17 | 190/50-ZR17 | |
| Front brakes | Dual disc, 310 mm (12.2 in) | Dual disc, 330 mm (13 in) | Dual disc, 330 mm (13 in) | |||
| Rear brakes | Single disc, 220 mm (8.7 in) | Single disc, 220 mm (8.7 in) | Single disc, 220 mm (8.7 in) | |||
| Fuel capacity | 18 l (38 US pt) with 2 l (4.2 US pt) reserve | 18 l (38 US pt) with 3.4 l (7.2 US pt) reserve | 18 l (38 US pt) with 3.4 l (7.2 US pt) reserve | |||
| Performance | ||||||
| Max. Power Output (at the crankshaft) | 128 hp @ 10,500 rpm | 150 hp @ 11,500 rpm | 154 hp @ 11,250 rpm | |||