Honda CB 450

The Honda CB 450 is a 1965 accommodated by the Japanese manufacturer Honda motorcycle on the market. The nickname of the original model was "Black Bomber". With the CB 450 Honda penetrated for the first time in the up in the 1960s, English and German domain of fast sports machines.

• 2.1 Motor

• 3.1 Model K0
• 3.2 models K1 to K5

History

Master model 450 K0

The engine is a high-revving two-cylinder four -stroke engine, a hitherto unseen in the series production engine design with dual overhead camshafts, valve springs are not implemented as coil springs, but as torsion springs. For greater maneuverability and less vibration of the engine has a crankshaft offset of 180 °, so it is different to English Two cylinder a counter- runner. The whole bike is still relatively light and handy, and at the time suspected of being over-bred technology proved to the astonishment of the art as durable.

The machine played with 32 kW (43 PS ) and a specific power output of almost 74 kW ( 100 hp ) in the former League of 650cc Triumph, the 750 Norton and 600cc BMW with, and this. At a much cheaper price than the arrivierten brands

She had a four-speed transmission up to 1968. Some components still based on the CB 72, the smaller 250 cc predecessor.

Models K1 to K5

In 1968, a heavily facelifted version CB 450 K1 on the market: it was equipped with a five-speed gearbox and frame, front fork, tank and the design has been changed. Almost all CB - 72 parts were replaced, the type number was now 292 and 293 for the successful in the U.S. Scrambler model. The original version has now been referred to by insiders as 450 K0 and is now very rare and highly sought after, but partly also difficult to repair because of some special parts in case of problems.

The K1 K2 to K5 followed the models that were, in some cases technically slightly modified in some cases only in design. The K5 model was built on a slight variation to 1975. The CB 450 laid the foundation for Honda's triumph in the world of big bikes.

A late model of this series was the Honda CB 500 T with a slightly larger displacement, which was sold in the time of great Japanese four-cylinder in the late 1970s with nearly 2,000 DM for a very low price. Today, this model has become a rare classic.

Scrambler CL 450

Subtype number 293, the Scrambler model was particularly successful in the United States. It featured a higher handlebar, other tank decoration and colors as well as a one-piece, high- set 2 -into-2 exhaust with heat protection plates, which led on the left side above the transmission straight back. The model designation was CL 450 K0 to K6.

Construction

Motor

Honda introduced pioneering design features into the standard motorcycle, thus establishing its position as the leading motorcycle manufacturers. The two-cylinder four -stroke engine was cooled airstream. The four- roller-bearing crankshaft with roller bearings also connecting rod is pressed and has easy to install bearing plates which are screwed in horizontally split crankcase. The cylinder bank is cast in aluminum and has liners made of gray cast iron. A running between the cylinders timing chain drives the two overhead, plain bearing camshafts. The valves in the cast Brennraumkalotten the aluminum cylinder head be opened by rocker arms; as valve springs are installed torsion bar springs that engage the valve stems via make arms.

Were used for mixture preparation two Keihin CV carburetors with 36 mm aperture.

Specifications

Model K0

• Power: 32 kW (43 hp) at 8500 rpm
• Maximum speed: 170 km / h
• Weight: 198 kg
• Displacement: 444.9 cm ³
• Acceleration 0-100 km / h: 5.3 seconds
• Gears: 4
• Brakes: 2 drum brakes ( front & rear )

Models K1 to K5

• Power: 33 kW (45 hp) at 9000/min
• Compression ratio: 9:1
• Displacement: 444 cm ³
• Bore: 70 mm
• Stroke: 57.8 mm
• Gears: 5
• Brakes: Front disc brake, rear drum brake

Later CB 450

Between 1985 and 1989, the Honda CB 450 N and 450 S CB were built. They socialize only with engine displacement and number of cylinders at the K- models, but are otherwise independent structures, and is positioned as a low cost entry level motorcycles else in the market of their time.

The designation " N" stands for "Naked " version and "S " for a "sport " version. The engine is in both versions are similar but not the same, they differ in context and Electrical: When CB 450 N, the fuse is located under the seat on the left side; the tachometer is driven via a shaft. The CB 450 S has the fuses directly to the handlebars, and the signal for the tachometer is transmitted electronically. The rear is slightly wider in the "Sport" variant; the rear light is adapted to the shape of the stern.

Developed in Brazil and produced CB 450 N first came out and shows a "classic " Honda - face with the then current aluminum wheels. But you no longer met the taste of the buyer and was in Europe after only one year of the CB 450 S replaced, which had a distinctive trellis frame and ComStar wheels. In Brazil, the CB 450 N was further produced 450 DX under the name CB. The striking differences were the rectangular headlights and disc brake at the rear. The last model change took place in 1993. The successor of the CB 450 N ( DX) in 1994 was the CB 500

For Germany, Honda developed an insurance affordable 27- PS version. The power reduction, the CB 450 S could be abolished by replacing the camshaft, carburetor needle carburetor springs and pinion. For the CB 450 N only the camshaft had to be replaced. Honda gives an opinion on this free registration with the TÜV to download.

The Honda CB 450 S has an empty weight of 184 kgs, making it easy to handle. With the six-speed gearbox, the top speed of 27 hp at about 145 km / h and in the derestricted state at about 175 km / h