New CBR1000RR details revealed
Honda has unveiled the details on its new-generation CBR1000RR, which is a very substantial update on the 2005 bike.Overall, the big effort has been put into making the model lighter, hand;le quicker and present a sharper aerodynamic profile. Honda Australia is due to launch the machine to the media on March 23 at Phillip Island. Price has yet to be announced, but the company says it hopes to keep it close to the 2005 tag of $18,790 plus ORC.
Here is what the company has to say about the new machine:
The new model inherits the same basic styling and specifications as its predecessor, carefully refined down to the smallest detail to ensure nimbler handling and greater concentration of mass. Overall weight has been reduced, shaving 4.0kg off the previous model to achieve quicker acceleration and nimbler handling.
The styling employs a smooth, curvaceous design with the surface area of the cowl reduced by 13% compared to the previous model. The lower cowls have been fitted with larger air outlets for improved engine cooling and enhanced riding comfort.
Engine enhancements include a reworking of the cylinder head shape and size, valve shape, and combustion chamber shape, resulting in better combustion and more efficient engine aspiration for improved low-to-midrange torque.
For the chassis, caster angle and the amount of trail have been adjusted to obtain more nimble handling, while the engine mount bolts were also reworked to achieve exquisitely sensitive, responsive handling characteristics.
Improvements to the brakes include thinner, larger diameter front brake discs and lighter, more compact rear brake calipers, to deliver both weight savings and improved braking performance.
Styling
The latest model has been given a complete makeover from nose to tail, styled on a tight, aggressive, clear-cut design concept. While inheriting the overall design of its predecessor, the bike’s cowl has been given a sharper cut to create a more aggressive forward visage. This results in an approximately 13% reduction in the surface area of the cowl compared to the previous model, while also contributing to weight reduction, easier maintenance, and nimbler handling performance. The lower cowls have also been fitted with larger air outlets that channel engine heat to the rear for enhanced riding comfort.
Engine
The CBR1000RR comes fitted with a water-cooled, 4-stroke, DOHC in-line 4-cylinder 998cm3 engine that is lightweight and compact yet offers a combination of outstanding power and control characteristics throughout its broad power band.
The new engine inherits the same basic specs as its predecessor, but has been carefully refined down to the smallest detail in pursuit of lower weight and more powerful output.
The cylinder head intake ports have been made straighter and the size of the exhaust ports increased.
Modifications to the valve shape and adjustments to valve timing were also implemented, and a finer grain size employed for the materials used to form the inner mold when forging the intake ports. These modifications result in more efficient engine aspiration for higher torque in the frequently used low-to-mid speed ranges.
The volume of the combustion chamber has also been reduced by 2.7% to increase the compression ratio from 11.9:1 to 12.2:1, resulting in greater fuel efficiency.
The engine has been lightened throughout, through the use of lighter camshaft materials, a lighter ECU (Electronic Control Unit), which controls fuel injection and other engine functions, and a lighter shift change drum. The Center-Up exhaust system and radiator have also been lightened, contributing to more nimble handling.
Chassis
Modifications to the chassis were implemented to achieve greater concentration of mass and take full advantage of the engine’s output, without any major changes to the size of the frame or other components. The head pipe was repositioned on the frame body, prompting a change in caster angle from the previous model’s 23°45’ to 23°25’ and a reduction in trail amount by 2mm, from 102mm to 100mm. The specs for the engine mount bolts were also reworked to achieve exquisitely sensitive, responsive handling characteristics. The diameter of the front disc brake rotors was increased from 310mm to 320mm and their thickness reduced from 5.0mm to 4.5mm. The rear brake also employs a smaller, lighter caliper that combines improved braking performance with lower weight. Other changes include a modified instrument panel design for better visibility and greater ease of use.
Specifications
Engine Type Liquid-cooled 4stroke 16-valve DOHC inline-4
Bore x Stroke 75 x 56.5mm
Displacement 998cm3
Compression Ratio 12.2 : 1
Carburettor(s) PGM-DSFI electronic fuel injection
Oil Capacity 3.8 litres
Throttle Bore 44mm
Ignition Computer-controlled digital transistorised with electronic advance
Starter Electric
Transmission 6-speed
Final Drive #530 O-ring sealed chain
Dimensions (mm) 2,030 x 720 x 1,118mm
Wheel Base (mm) 1,400mm
Trail (mm) 100mm
Ground Clearance (mm) 130mm
Fuel Capacity (litres) 18 litres (incl. 4-litre LCD-indicated reserve)
Front Wheel 17´ MT3.50 Hollow-section triple-spoke cast aluminium
Rear Wheel 17´ MT6.00 Hollow-section Triple-spoke cast aluminium
Front Tyre 120/70 ZR17M/C (58W)
Rear Tyre 190/50 ZR17M/C (73W)
Front Suspension 43mm inverted H.M.A.S cartridge-type telescopic fork with stepless preload, compression and rebound adjustment, 120mm axle travel
Rear Suspension Unit Pro-Link with gas-charged H.M.A.S damper featuring 13 step preload, and stepless compression and rebound damping adjustment, 135mm axle travel
Front Brakes 320 x 4.5mm dual hydraulic disc with 4-piston callipers and sintered metal pads
Rear Brakes 220 x 5mm hydraulic disc with single-piston calliper and sintered metal pads
Dry Weight (kg) 176
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