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Honda CB750K2 (1972)

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Honda CB750K2 (1972)

At a glance

Capacity
736 cc / 44.9 cub in.
Power
50 kW / 67 hp @ 8000 rpm
Torque
44 lb-ft / 60 Nm @ 7000 rpm
Seat height
800 mm / 31.5 in.

The full picture.

The Honda CB750K2 motorcycle was introduced in 1972 and features a four-stroke, transverse four-cylinder, SOHC, 2 valve per cylinder engine with a capacity of 736cc. With a compression ratio of 9.0:1, the bike is air-cooled and uses a dry sump lubrication system. It has 4×28 mm Keihin carburetors and battery coils for ignition, with electric and kick starting options. The maximum power is 67 hp at 8000 rpm, and the maximum torque is 60 Nm at 7000 rpm. The motorcycle also has a multi-plate, wet clutch and a 5-speed transmission with a chain final drive. The frame is made of tubular steel duplex cradle, with telescopic forks for the front suspension and swingarm, dual shocks for the rear, with preload adjustable. The front brake is a single 296 mm disc, while the rear is a 179 mm drum, and the tires are 3.25-19 and 4.00-18 for the front and rear respectively. Weighing 499 pounds, the Honda CB750K2 has a fuel capacity of 4.8 US gallons and an oil capacity of 7 US pints. The bike has an average consumption rate of 6.9 L/100 km, 14.6 km/L or 34.3 US mpg, with a braking distance from 48 km/h to 0 in 10 meters, and from 97 km/h to 0 in 41 meters. The standing 1/4 mile is 13.5 seconds and 100.9 mph, while the top speed is 123.2 mph. The Honda CB750K2 came in three color options: brier brown metallic, flake sunrise orange, and candy gold.


Technical specifications:

Make Model: Honda CB 750 Four K2

Motorcycle technical specifications
Year1972
EngineFour stroke, transverse four cylinder, SOHC, 2 valve per cylinder.
Capacity736 cc / 44.9 cub in.
Bore x Stroke61 63 mm
Compression Ratio9.0:1
Cooling SystemAir cooled
LubricationDry sump
Induction4 x 28 mm Keihin carbs
IgnitionBattery, coils
StartingElectric, kick
Max Power50 kW / 67 hp @ 8000 rpm
Max Torque44 lb-ft / 60 Nm @ 7000 rpm
ClutchMulti-plate, wet
Transmission5 Speed
Final DriveChain
Gear Ratios1st 13.99 / 2nd 9.54 / 3rd 7.45 / 4th 6.14 / 5th 5.26:1
FrameTubular steel duplex cradle
Front SuspensionTelescopic forks non adjustable.
Rear SuspensionSwingarm, dual shocks, preload adjustable.
Front BrakeSingle 296 mm disc
Rear Brake179 mm Drum
Front Tyre3.25-19
Rear Tyre4.00-18
Wheelbase1453 mm / 57.2 in.
Seat Height800 mm / 31.5 in.
Ground Clearance160 mm / 6.3 in.
Wet Weight226 kg / 499 lbs
Fuel Capacity18.2 L / 4.8 US gal
Oil Capacity3.3 L / 7 US pints
Consumption Average6.9 L/100 km / 14.6 km/l / 34.3 US mpg
Braking Distance 48 km/h / 30 mph – 010 m / 32.9 ft
Braking Distance 97 km/h / 60 mph – 041 m / 135.7 ft
Standing 1/4 Mile13.5 sec / 100.9 mph
Top Speed198 km/h / 123.2 mph
ColoursBrier brown metallic, Flake sunrise orange, Candy gold