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Thread: R90S fork springs

  1. #1

    R90S fork springs

    Does anyone know if a 1975 R90S came from the factory with the HD front fork springs (part #31421232017)

  2. #2
    Liaison 20774's Avatar
    Join Date
    Sep 2005
    San Antonio, TX
    Welcome to the forum! I can't tell if the heavy duty spring was installed from the factory. But the current online fiche shows it as a choice along with the non-reinforced spring #31421231358.
    Kurt -- Forum Liaison ---> Resources and Links Thread <---
    '78 R100/7 & '69 R69S & '52 R25/2
    mine-ineye-deatheah-pielayah-jooa-kalayus. oolah-minane-hay-meeriah-kal-oyus-algay-a-thaykin', buddy!

  3. #3
    Gerard jagarra's Avatar
    Join Date
    Aug 2016
    Reno, NV
    I think the HD spring has a white stripe or mark painted on the top.
    Last edited by jagarra; 01-10-2020 at 05:17 AM.
    1994 R1100RS-(5/93)-,1974 R90/6 built 9/73,--1964 Triumph T100--1986 Honda XL600R

  4. #4
    My '75 R90S (purchased new) came with standard fork springs.

  5. #5

    Fork Springs

    Quote Originally Posted by pwfix View Post
    Does anyone know if a 1975 R90S came from the factory with the HD front fork springs (part #31421232017)
    if memory serves, the HD springs were an option. I installed them on my 1974 R90s and IMHO, they're a huge improvement over Progressive's or other manufacturer's aftermarket springs.


  6. #6
    Registered User lkchris's Avatar
    Join Date
    Mar 2003
    Albuquerque, NM
    IIRC the 017 springs first appeared with and were first exclusive to the R100RS. Extra fairing weight, you know.
    Kent Christensen
    '12 R1200RT, '02 R1100S, '84 R80G/S

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