1978 Honda hawk cb400 t
Results 1 to 8 of 8
  1. #1
    Junior Member njcb's Avatar
    Join Date
    Sep 2019
    Posts
    13

    1978 Honda hawk cb400 t

    I need some help I would like to change the front front end on my hawk. Maybe put a cb 750 on it, what year would work I would like to keep the front fork lock to work also thanks

  2. #2
    Sensei 66Sprint's Avatar
    Join Date
    Sep 2008
    Location
    Roanoke, Virginia
    Posts
    25,900
    It's NOT a simple answer, and I'll need answers to a couple questions first.... but a short phone call can solve that.......
    "I have a mind like a steel trap.....Old and rusty, of antiquated design, and hard to get stuff back out of...."
    Contact info: E-mail; [email protected] Phone; 540-525-5199

  3. #3
    Super Moderator longdistancerider's Avatar
    Join Date
    Oct 2011
    Location
    Vancouver Washington (text 408-239-9580)
    Posts
    22,338
    I have a 1981 CB900F front end on the road bike, no steering lock and requires making steering stops. Looks like all that vintage 750/900 series had no steering lock on the lower half of the triple.
    Jim O'Brien
    1979 CM400T "road bike" modified for travelling
    1978 CB400T1 restored
    1972 CL350 nuts and bolts restore in progress


    https://www.hondatwins.net/forums/22...d-attempt.html and https://www.hondatwins.net/forums/1-...r-attempt.html
    Road Trip https://www.hondatwins.net/forums/11...here-i-go.html or "where's Jim now?"
    Member Map https://www.hondatwins.net/forums/dcMembermap.php

  4. Remove Advertisements
    HondaTwins.net
    Advertisements
     

  5. #4
    Junior Member njcb's Avatar
    Join Date
    Sep 2019
    Posts
    13
    My buddy has a 74 cb 750 and the fork lock is under the triple tree like mine. What I am trying to do is beef up the front end to make the bike look bigger cause the front end looks small and change the rear shocks also. I would change everything as a bolt on. Is any thing available thanks

  6. #5
    Super Moderator longdistancerider's Avatar
    Join Date
    Oct 2011
    Location
    Vancouver Washington (text 408-239-9580)
    Posts
    22,338
    From the All Balls website fork conversion chart
    Honda CB750K 1974 26 48.5 15 99-3511-5 30 50 14.25 99-3512-5

    The blue numbers are their bearing numbers to use with the '74 CB750 to the CB400
    You're not gaining much in fork tube diameter, 33mm to 35mm
    Here's what 39mm forks from an '81 CB900F look like on a '79 CM400T
    1978 Honda hawk cb400 t-201_3883.jpg
    Rear shocks are longer to match the height change in the front, CB750 shocks
    Jim O'Brien
    1979 CM400T "road bike" modified for travelling
    1978 CB400T1 restored
    1972 CL350 nuts and bolts restore in progress


    https://www.hondatwins.net/forums/22...d-attempt.html and https://www.hondatwins.net/forums/1-...r-attempt.html
    Road Trip https://www.hondatwins.net/forums/11...here-i-go.html or "where's Jim now?"
    Member Map https://www.hondatwins.net/forums/dcMembermap.php

  7. #6
    Junior Member njcb's Avatar
    Join Date
    Sep 2019
    Posts
    13
    What size shocks did you use in the rear. Thanks for all your help on this

  8. #7
    Junior Member njcb's Avatar
    Join Date
    Sep 2019
    Posts
    13
    I also noticed too is the dual disk

  9. #8
    Super Moderator longdistancerider's Avatar
    Join Date
    Oct 2011
    Location
    Vancouver Washington (text 408-239-9580)
    Posts
    22,338
    I'm glad I save some old emails:
    Chat transcription :-

    Progressive Suspension : Hi, how can I help you?
    97.94.146.0 : ok, I'm riding a '79 honda cm400t. it has a '81 cb900f front end.
    I'm using it for touring about the country, mostly paved roads.
    Progressive Suspension : And what can i help you with?
    97.94.146.0 : I'm looking at getting the suspension set properly for running
    fully loaded. I know it needs front springs as well as the forks rebuilt. The
    rear shocks are toast as well as the springs. What do you suggest?
    Progressive Suspension : For the rear i would look into our 12-1204b dampers and
    03-1367b coil springs
    Progressive Suspension : The 11-1102 fork spring kit will work on the front end
    97.94.146.0 : what is the overall length of those and the travel?
    97.94.146.0 : right now the rear is 13.75 length
    Progressive Suspension : <a
    href=http://www.progressivesuspension.com/pdfs/7100-105.pdf
    target=_blank>http://www.progressivesuspension.com/pdfs/7100-105.pdf</a>
    Progressive Suspension : Page 6
    Progressive Suspension : and 5
    97.94.146.0 : ok, I'll check that out
    Jim O'Brien
    1979 CM400T "road bike" modified for travelling
    1978 CB400T1 restored
    1972 CL350 nuts and bolts restore in progress


    https://www.hondatwins.net/forums/22...d-attempt.html and https://www.hondatwins.net/forums/1-...r-attempt.html
    Road Trip https://www.hondatwins.net/forums/11...here-i-go.html or "where's Jim now?"
    Member Map https://www.hondatwins.net/forums/dcMembermap.php

Sponsored Links

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •