The Dream CB750 FOUR / 1969

The Motorcycle That Gave Birth to the Nanahan Category

The Dream CB750 FOUR / 1969

Integrating Design with Human Engineering

The objective of Honda's basic development plan was to make long-range, high-speed touring safer and more comfortable, while achieving superior output. Therefore, the emerging science of human engineering - called "ergonomics" - was to be incorporated structurally, right down to the finest detail.

Photo

A product brochure for Honda's Dream CB750 FOUR explains the various mechanisms that combine to make the ideal motorcycle.

To facilitate the collaborative process among design engineers and production personnel, common engineering targets were established for product development. These included the following:

[1] Ensure stability during high-speed cruising (between 140 and 160 km/h) on highways, yet retain an ample margin of output for effective maneuvering in traffic.
[2] Provide a braking system that is reliable and resis tant to high loads by anticipating frequent rapid decelerations from high speeds.
[3] Minimize vibration and noise in order to reduce rider fatigue during long-range cruising. Provide an ideal riding position for comfort and the proper operation of controls based on human-engineering principles, and design the mechanisms so that the rider can easily learn how to operate them.
[4] Ensure that various ancillary devices, such as lights and instruments, are large and reliable. They must be designed to help the rider make sound judgments and ensure sufficient visibility for surrounding vehicles.
[5] Extend the service life for each device and ensure that it provides for easy maintenance and servicing.
[6] Create original designs that also are easy to mass produce by utilizing newer, better materials and production technologies. This applies particularly to cutting-edge surface-treatment technologies.

The satisfaction of these requirements meant that the team would have to utilize the vast reserves of engineering information Honda had accrued in the manufacture of Grand Prix machines. Moreover, computer systems would be introduced in order to streamline the various steps involved in development. However, computerization ultimately did more than that. It increased the efficiency of numerous development tasks, including plan modification in the prototype phase, design changes, hardware modifications, and testing. It even reduced the time needed to plan a line for mass production of the CB750 FOUR.

The Challenging Spirit of Honda

A System that Fosters Expertise
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  2. The R&D Center Goes Independent / 1960The R&D Center Goes Independent / 1960
  3. Employing the "My Record" Project and Expert Certification  / 1960Employing the "My Record" Project and Expert Certification / 1960
A Dream Come True: Car Builder for the World
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  2. Launching the S360 and T360 / 1962Launching the S360 and T360 / 1962
  3. Entering the Auto Market at Last / 1966Entering the Auto Market at Last / 1966
  4. Introducing N360 / 1967Introducing N360 / 1967
  5. Launching the Honda 1300 / 1968Launching the Honda 1300 / 1968
  6. Introducing the CVCC / 1972Introducing the CVCC / 1972
  7. Announcing the Civic / 1972Announcing the Civic / 1972
  8. Introducing the Accord / 1976Introducing the Accord / 1976
Marketing Globally, Producing Lacally
  1. Marketing Globally, Producing LocallyMarketing Globally, Producing Locally
  2. Establishing American Honda Motor Co. / 1959Establishing American Honda Motor Co. / 1959
  3. Establishing Belgium Honda / 1963Establishing Belgium Honda / 1963
  4. Establishing Honda of America Manufacturing / 1980Establishing Honda of America Manufacturing / 1980
A Refreshing New Development
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Products Emerging From Technology and Innovation
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  2. The Oval Piston Engine / 1979The Oval Piston Engine / 1979
  3. The Hondamatic Transmission / 1968The Hondamatic Transmission / 1968
  4. The Car Navigation System / 1981The Car Navigation System / 1981
  5. The Airbag System / 1987The Airbag System / 1987
  6. Four-Wheel Steering System (4WS) / 1987Four-Wheel Steering System (4WS) / 1987
  7. The VTEC Engine / 1989The VTEC Engine / 1989
  8. The ME Engine (G100 / 150 / 200 / 300 / 400 Series) / 1977The ME Engine (G100 / 150 / 200 / 300 / 400 Series) / 1977
  9. The ZE Engine (GX110 / 140 / 240 / 270 / 340 Series) / 1983The ZE Engine (GX110 / 140 / 240 / 270 / 340 Series) / 1983
  10. The Dream CB750 FOUR / 1969The Dream CB750 FOUR / 1969
  11. CG125 / 1975CG125 / 1975
  12. Road Pal / 1976Road Pal / 1976
  13. City / 1981City / 1981
  14. The NSX / 1990The NSX / 1990
  15. Odyssey / 1994Odyssey / 1994
  16. Honda EV Plus: The Dream of an Electric Vehicle / 1988Honda EV Plus: The Dream of an Electric Vehicle / 1988
  17. The E300 Portable Generator / 1965The E300 Portable Generator / 1965
  18. The HR21 Lawn Mower / 1978The HR21 Lawn Mower / 1978
  19. The F200 "Komame" Mini-Tiller / 1980The F200 "Komame" Mini-Tiller / 1980
Production Technology: The Essence of Creative Manufacturing
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  2. Establishment of Honda Engineering / 1974Establishment of Honda Engineering / 1974
  3. The World's Smallest Welding Line / 1982The World's Smallest Welding Line / 1982
  4. Transfer Lines for Modular Components / 1981Transfer Lines for Modular Components / 1981
  5. An Automated Line for Painting and Coating / 1988An Automated Line for Painting and Coating / 1988
A Neverending Passion for Racing
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  2. Completion of Suzuka Circuit / 1962Completion of Suzuka Circuit / 1962
  3. Returning to the World Motorcycle Grand Prix / 1979Returning to the World Motorcycle Grand Prix / 1979
  4. Formula One Entry: The Initial Phase / 1964Formula One Entry: The Initial Phase / 1964
  5. Formula One Entry: The Second Phase / 1983Formula One Entry: The Second Phase / 1983
  6. Entry to Champ Car Racing / 1994Entry to Champ Car Racing / 1994
  7. The Birth of Twin Ring Motegi / 1997The Birth of Twin Ring Motegi / 1997
Creativity - The Way to Work Harder, Play Harder
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  2. Holding All Honda Idea Contests / 1970Holding All Honda Idea Contests / 1970
People and Society Coexisting in Harmony with Nature
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  2. Establishment of Honda Taiyo, Kibo-no-Sato Honda and Honda R&D Taiyo / 1992Establishment of Honda Taiyo, Kibo-no-Sato Honda and Honda R&D Taiyo / 1992
  3. Creating Hometown Forests / 1977Creating Hometown Forests / 1977
  4. Hosting "Orei-no-kai" / 1991Hosting "Orei-no-kai" / 1991

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