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Thread: heavy duty clutch springs

  1. #1
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    Sep 2009
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    Newtownabbey N.Ireland
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    heavy duty clutch springs question

    dumb question ..... are heavy duty clutch springs shorter than standard ?
    Last edited by kenzrx; 6th January 2019 at 02:04 PM.

  2. #2
    Join Date
    Jul 2005
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    4,108

    Re: heavy duty clutch springs question

    I don’t think so,but they killed my hand couldn’t wait to change back.

  3. #3
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    Nov 2012
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    Bracknell Berkshire
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    Re: heavy duty clutch springs question

    I think they're a little longer if I remember right, they get nipped down a little bit more to give them more tension.

  4. #4
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    Re: heavy duty clutch springs question

    IMG_20190106_210522.jpgIMG_20190106_210645.jpg

    these are the one's i got from wemoto they're half the size of the standard one

  5. #5
    Join Date
    Jun 2014
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    9,142

    Re: heavy duty clutch springs question

    Barnett are about the same length if not a tad longer (its been a while) and think they are of a higher gauge wire IIRC.

    I would be very surprised if they should be shorter though so I would go back to them
    What Goes Around..........!!!

  6. #6
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    Re: heavy duty clutch springs question

    Quote Originally Posted by ZRXNige View Post
    Barnett are about the same length if not a tad longer (its been a while) and think they are of a higher gauge wire IIRC.

    I would be very surprised if they should be shorter though so I would go back to them
    theyre 27.4 mm and standard 42.9mm

  7. #7
    Join Date
    Sep 2018
    Location
    Santa Cruz, CA
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    13

    Re: heavy duty clutch springs question

    I put some in a 1983 gs 650, they were the same dimensions...it was not worth it now i get a forearm workout every time i go for a ride.

  8. #8
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    Location
    Farnborough Hants
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    Re: heavy duty clutch springs question

    The EBC ones I had were a tad longer than stock.
    The Barnett ones I have in were a little shorter but much heavier gauge.
    I have the EBC ones sittng on the shelf if you want me to measure them.
    TPB-Founder member HCW
    Champagne ideas on beer money

  9. #9
    Join Date
    Jul 2017
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    South from the Deep South
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    2,253

    Re: heavy duty clutch springs question

    Quote Originally Posted by kenzrx View Post
    dumb question ..... are heavy duty clutch springs shorter than standard ?
    Not sure why you need this since free - unloaded length of coil spring doesn't matter.

    When comparing two springs (assuming Kirhoff Modulus is the same for both springs like both are made of the same material) stiffer springs would have either thicker spring wire, smaller number of coils or smaller spring diameter. Combination of those 3 parameters would also produce stiffer springs.
    Polish onslaught

  10. #10
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    Sep 2009
    Location
    Newtownabbey N.Ireland
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    Re: heavy duty clutch springs question

    Quote Originally Posted by Pal View Post
    The EBC ones I had were a tad longer than stock.
    The Barnett ones I have in were a little shorter but much heavier gauge.
    I have the EBC ones sittng on the shelf if you want me to measure them.
    please if ya dont mind Pal it will put my mind at rest then

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