Honda CB450K (1969-70)

The Honda CB 450 motorcycle was produced between 1969 and 1970. It has a four stroke, parallel twin cylinder engine that has a capacity of 445 cc. The cooling system is air cooled and the compression ratio is 9.0:1. Induction is via 2x 32mm Keihin carburetors and ignition is through a coil with auto-advance and twin contact breaker, where starting is done via kick. The motorcycle has a maximum power of 45 hp at 9000 rpm and a maximum torque of 37.4 Nm at 7000 rpm. The transmission is a 5-speed and the final drive is through a chain. It has a tubular semi-duplex cradle with single front down-tube for the frame, with telescopic forks with two-way damping and swing arm shock absorbers with adjustable preload for the suspension. The front brake is a single disc and the rear brake is a drum. The front and rear tires are 3.25-18 and 3.50-18, respectively, while the wheelbase measures at 1300mm. Dry weight of the motorcycle is at 187 kg and wet weight is 204.0kg. The fuel capacity of the motorcycle is 14 litres or 3.7 US gallons.

---

Technical specifications:

Make Model: Honda CB 450

Year: 1969 – 70

Engine: Four stroke, parallel twin cylinder, DOHC, 2 valves per cylinder

Capacity: 445 cc / 27.1 cu-in

Bore x Stroke: 70 x 57.8 mm

Cooling System: Air cooled

Compression Ratio: 9.0:1

Induction: 2x 32mm Keihin carburetors

Ignition: Coil with auto-advance, twin contact breaker

Starting: Kick

Max Power: 45 hp / 32.8 kW @ 9000 rpm

Max Torque: 37.4 Nm / 27.6 lb-ft @ 7000 rpm

Transmission: 5 Speed

Final Drive: Chain

Frame: Tubular semi-duplex cradle with single front down-tube

Front Suspension: Telescopic forks with two-way damping.

Rear Suspension: Swing arm, shock absorbers with adjustable preload

Front Brakes: Single disc

Rear Brakes: Drum

Front Tyre: 3.25-18

Rear Tyre: 3.50-18

Wheelbase: 1300 mm / 53 in

Dry Weight: 187 kg / 412 lbs

Wet Weight: 204.0 kg / 449.7 lbs

Fuel Capacity: 14 Litres / 3.7 US gal