News Releases 2003
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MotorcycleJapanJanuary 30 , 2003
Honda Announces a Full Model Change for the CB1300 SUPER FOUR Large-Displacement Road Sports Bike

Tokyo, January 30, 2003 --- Honda Motor Co., Ltd. has announced a full model change for its CB1300 SUPER FOUR large-displacement road sports bike. The new bike, which features dynamic styling combined with a powerful water-cooled, 4-stroke, in-line 4-cylinder 1300cc engine, goes on sale February 7th.

The new CB1300 SUPER FOUR is the latest advancement on the CB1000 SUPER FOUR model, based on the "Project Big-1"*1 concept, that was first introduced in November 1992. The displacement was boosted to 1300cc in March 1998, winning over a broad spectrum of motorcycle enthusiasts.

*1 The "Project Big-1" concept seeks to achieve exciting driving performance through a sophisticated blend of light, nimble handling and powerful engine performance in a bike equipped with a water-cooled, DOHC 4-valve, in-line 4-cylinder engine.


CB1300 SUPER FOUR
CB1300 SUPER FOUR

The dry weight of the new bike is 20kg lighter than previous models, and a 3-D ignition timing control system and PGM-FI (Programmed Fuel Injection) have been added to achieve precise, sensitive throttle response and smooth powerful output characteristics. The exhaust system and other components were also redesigned to create a dignified, comfortable exhaust sound and resonance that the rider experiences through his or her entire body, further enhancing the bike's driving pleasure.

Functional improvements include a 12-liter storage compartment under the seat and Honda's original HISS (Honda Ignition Security System) anti-theft device. An information display has also been added to provide the rider with all required information, further heightening the bike's ease of operation. The new model inherits the CB1000 SUPER FOUR's dynamic styling, combining beauty with functionality.

In addition to the traditional two-tone color combinations of white on red and black on gray embellished with a wing-mark motif, a solid-color type is also available in simple monotone silver, for three color schemes in all.



= Main Features of the CB1300 SUPER FOUR =

A new more compliant, more fun-to-drive engine that is 8kg lighter
The new CB1300 SUPER FOUR engine's rocker arms have been replaced with a "direct push" system in which the cam lobes operate via lifters to open and close the valves directly. This results in greater combustion efficiency and a more compact, lightweight, low-friction design. Further weight reductions attained through the use of a thinner cylinder block and the elimination of engine fins result in an engine unit that is 8kg lighter. Innovations throughout ensure unrivalled operability and engine response. In the fuel system, the carburetor has been abandoned in favor of digitally controlled PGM-FI equipped with an advanced 32-bit high-performance ECU that executes high-speed analysis of engine rpm, camshaft rpm, water temperature, atmospheric pressure, throttle opening, and other data to achieve improved throttle response and optimum combustion efficiency.

Air injection contributes to a major reduction in CO, HC, and NOX emissions
A built-in air injection system delivers the optimum amount of fresh air to the exhaust ports in each cylinder, causing incompletely combusted materials in the port to re-ignite. In combination with the PGM-FI, this results in a major reduction of CO, HC, and NOX emissions in the exhaust.

Exhaust sound performance that further enhances the fun of the ride
In order to produce a crisp, pleasant exhaust sound, the 4-2-1 exhaust pipe is fitted with a single-pipe collector and muffler. The muffler's rear cap is also equipped with a newly developed variable exhaust valve to create a clear sound with a minimum of interference noise. Other improvements include a drive chain fitted with plastic washers between the rollers to suppress drive noise and a rubber rear upper engine mount that reduces unpleasant vibration noises, resulting in a pleasing sound that further enhances the fun of the ride.

A lighter, more compact frame delivers comfortable driving performance
The dual-backbone, double-cradle frame provides improved overall rigidity and balance. A shortening of the wheelbase by 30mm, in addition to other modifications, has resulted in a 7kg weight savings in the frame area. The new design emphasizes handling and driving performance.

Meter display provides instant confirmation of all important driving information
The custom-designed, twin-gauge display features an analog speedometer and tachometer. Inside the tachometer is an LCD panel displaying a clock and fuel gauge, and between the speedometer and tachometer is an LCD information display that shows two odometers, distance remaining, a stopwatch, coolant temperature, ambient air temperature, distance traveled per day and more.

Major increase in cargo capacity, including a 12-liter storage space
The 12-liter storage space located under the seat is big enough to accommodate a U-lock, rainwear, gloves, cap, maps, and more. This cargo space, combined with the six hooks located at the back of the seat, gives the new CB1300 SUPER FOUR a major increase in cargo capacity over previous models.

Coloring
The new CB1300 SUPER FOUR is available in either a two-tone color scheme employing newly developed ultra-thin color film for the tank stripes for a nearly flush fit, or a simple, solid color scheme. The two-tone type is available in either Pearl Fadeless White and Candy Aramona Red, traditional to the CB series, or Black and Force Silver Metallic with a graphic design patterned after a partial wing mark. The solid color type is Force Silver Metallic.


Specifications
Model Name CB1300 SUPER FOUR
Model Type Honda BC-SC54
L x W x H (m) 2.220 x 0.790 x 1.120
Wheelbase (m) 1.515
Ground Clearance (m) 0.135
Seat Height (m) 0.790
Vehicle Weight (kg) 254
Dry Weight (kg) 226
No. of Riders 2
Turning Radius (m) 2.7
Engine Model and Type SC54E water-cooled 4-stroke DOHC 4-valve in-line
4-cylinder
Displacement (cm3) 1,284
Bore x Stroke (mm) 78.0 x 67.2
Compression Ratio 9.6 to 1
Maximum Power (kW[PS]/rpm) 74[100]/7,000
Maximum Torque (N·m [kg·m] /rpm) 117[11.9]/5,500
Fuel Consumption (km/) 25.0 (60km/h, low-elevation driving)
Fuel Supply PGM-FI (Programmed Fuel Injection)
Starting Self-starting type
Ignition Fully-transistorized battery ignition
Lubrication System Force feed and splash
Oil Capacity () 4.8
Fuel Tank Capacity () 21
Clutch Wet-type, multi-plate coil spring
Gearbox Constant-mesh, 5-speed return
Gear Ratio 1st Gear 3.083
2nd Gear 2.062
3rd Gear 1.545
4th Gear 1.272
5th Gear 1.130
Differential (primary/secondary) 1.652/2.167
Caster Angle (degrees)/Trail (mm) 25°00´/99
Tire Size Front 120/70ZR17 M/C (58W)
Rear 180/55ZR 17 M/C (73W)
Braking System Front Hydraulic disc (double)
Rear Hydraulic disc
Suspension Front Telescopic
Rear Swing arm
Frame Double cradle
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