Honda CBR954RR
1992 CBR900RR
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| Manufacturer | Honda |
|---|---|
| Also called | Fireblade |
| Production | 1992-2003 |
| Successor | CBR1000RR |
| Class | Sport bike |
| Related |
Honda CBR600RR Honda CBR1000RR Honda CB900F |
The Honda CBR900RR, also known as the Fireblade in some countries, is a 900 cc sport bike, part of the CBR series introduced in 1992 by Honda. It was the first of a series of large-displacement Honda models to carry the RR suffix. The development of the first generation CBR900RR was led by Tadao Baba.
The first generation CBR900RR was introduced in 1992 with an 893 cc (54.5 cu in) inline-four engine. It set a precedent for light weight in the super bike class. The CBR900RR was based on an advanced research stage model known within Honda as the "CBR750RR". With the objective of equaling the acceleration of competitors’ flagship sport bikes, Honda increased the stroke of its inline 4-cylinder 750cc engine and thus raised displacement to 893cc. Complementing its power performance were the bike’s dry weight of just 185 kg, wheelbase of 1,405 mm and a body almost identical to that of the advanced research stage model. At 453 lb (205 kg) wet weight, it was by just 4 lb (2 kg) heavier than the CBR600F2, while the next-lightest open-class machine Yamaha FZR1000 was heavier by 76 lb (34 kg).
Changes for the 1994 model comprise a new shift drum to improve notchy gear shifts. The second-generation CB900RR, which debuted in 1995, incorporated changes in damping rates and spring rates. The front fork was upgraded with a compression adjuster. The upper cowl stay went from steel to aluminum, and the cylinder head cover went from aluminum to magnesium. The styling of the bike also became more aggressive: The independent dual lights became irregular-shaped multi-reflector lights known as "fox eyes" and the bike had fewer of the RR's unique fairing holes. The foot pegs were firmer and slimmer like that of the RC45 and the reversed pedal on the original was replaced with a shift linkage. Instead of measuring speed from the front wheel the speed is measured from the countershaft sprocket with an electronic speedometer.
1996 brought major changes to the CBR900RR with the third generation CBR900RR. To optimize rigidity Honda revised the suspension and chassis. Larger thinner-walled extrusions for more torsional rigidity were used in the swingarm and frame, revised shock and fork internals and 5 mm (0.2 in) raised swingarm pivot. The handle bars were raised by 10 mm (0.4 in)and swept back by five degrees to improve the riding position. A 1 mm (0.04 in) bore increase raised the engine displacement to 918 cc (56.0 cu in). Other revisions included a smaller alternator, the addition of a throttle position sensor, extra clutch plates, and a larger exhaust.
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