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Thread: 1978 R100/7 front fork spring

  1. #1
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    1978 R100/7 front fork spring

    Does anyone have access to the free-length of a new set of front fork springs of a 1978 R100/7 front fork? How long are they supposed to be?

    I want to measure mine when I take them out and see just how far gone they are.

    Also, any suggestions when I rebuild my front forks as to what to put in new - seals, orings, etc.

    Thanks,
    Jim

  2. #2
    Administrator 20774's Avatar
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    Haynes says for 1978 /7 the free length is 567-579mm.
    Kurt -- Forum Administrator ---> 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
    Registered User toooldtocare's Avatar
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    And the factory manual states the same thing, minimum is 567 for /7, and 543 for the RS. Something I did not know, the RS is different.

  4. #4
    Registered User bmweuro's Avatar
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    Quote Originally Posted by toooldtocare View Post
    And the factory manual states the same thing, minimum is 567 for /7, and 543 for the RS. Something I did not know, the RS is different.
    ..and the RS springs are stiffer.
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  5. #5
    Administrator 20774's Avatar
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    Quote Originally Posted by bmweuro View Post
    ..and the RS springs are stiffer.
    I'm guessing that this comes from the wire diameter being bigger.
    Kurt -- Forum Administrator ---> 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!

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