WTB: R12 rear shocks - Koni maybe?
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Thread: WTB: R12 rear shocks - Koni maybe?

  1. #1
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    Default WTB: R12 rear shocks - Koni maybe?

    Does anyone know where I might source a pair of these shocks? They are not currently listed in Koni's online catelogues.

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    Daily Drivers: R10, R12, R17T(?) Decouvrable

    In the Shed(s):
    R8 (1.4 motor, 4 shock rear end), Dauphine, Pugeot 404

    In the Past:
    Dauphine X2, R10 X lots, R12 X2, R16TS, R17TS

  2. #2
    1000+ Posts schlitzaugen's Avatar
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    Try ebay.

    I found a full set of NOS Konis in Florida of all places. It was an ebay shop well decked with a lot of R12 stuff.

    Can't remember anymore detail, sorry.
    ACHTUNG ALLES LOOKENPEEPERS

    Das computermachine is nicht fur gefingerpoken und mittengrabben. Ist easy schnappen der springenwerk, blowenfusen und poppencorken mit spitssparken. Ist nicht fur gewerken bei das dummkopfen. Das rubbernecken sightseeren keepen hands in das pockets-relaxen und watch das blinkenlights.

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    Fellow Frogger! nauli's Avatar
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    Try these guys...https://www.rtec.ws/en_US/
    Gil van den Heuvel is very helpful
    Shoji likes this.
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  4. #4
    Fellow Frogger!
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    I just fitted a pair of adjustable shocks from AVO in the UK. I think I purchased them through EuroPerformance in the UK.
    They took a long time to arrive because they are made to order and there was some manufacturing/tooling breakdown issues at AVO. All up they were about $300-400 landed.
    I can't comment on their performance yet other than that they were an actual bolt in and no modifications or massaging was required.
    bowie likes this.

  5. #5
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    Thanks all.

    I’m thinking there’s nothing special about them. Pointy at one end, round at the other. Something else must fit so I’m looking for cross references, again with little success.
    Daily Drivers: R10, R12, R17T(?) Decouvrable

    In the Shed(s):
    R8 (1.4 motor, 4 shock rear end), Dauphine, Pugeot 404

    In the Past:
    Dauphine X2, R10 X lots, R12 X2, R16TS, R17TS

  6. #6
    COL
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    Renault Fuego shocks fit, I have them in the back of my R12 wagon at present.
    Regards Col

    1973 Renault R12 Station Wagon
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  7. #7
    1000+ Posts bowie's Avatar
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    They what now!

    So I suppose coil-overs designed for a Fuego would work too.

    Works: 2003 YV Commodore (That is Cecil to you)
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    1000+ Posts schlitzaugen's Avatar
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    In principle you are right, in reality you aren't.

    Shocks are valved to provide the amount of damping prescribed by the manufacturer (Renault).

    Changing the shocks to whatever equates to changing the mass of the car, the spring rate, suspension travel and the lever length of the suspension arm.

    Most of these combinations if randomly chosen are crap (overdamped, underdamped, resonant, who knows what else?) with just a narrow window of perfect matches.

    What is the probability that you're going to get it right?

    The beauty of (at least old) Konis is they are rebuildable, so even if you get your hands on an old set you can have them rebuilt. Some even allow for a bit of adjustment.

    Bowie has that set from me, why don't you ask him for the part numbers?
    ACHTUNG ALLES LOOKENPEEPERS

    Das computermachine is nicht fur gefingerpoken und mittengrabben. Ist easy schnappen der springenwerk, blowenfusen und poppencorken mit spitssparken. Ist nicht fur gewerken bei das dummkopfen. Das rubbernecken sightseeren keepen hands in das pockets-relaxen und watch das blinkenlights.

  9. #9
    1000+ Posts driven's Avatar
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    Search for "dampers" as well. Different terminology in other parts of world

    Brand new R12 rear dampers from UK

    https://www.dcperformance.co.uk/chea.../av-te390.html
    Exfrogger likes this.

  10. #10
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    But if they’re adjustable surely that means you can alter damping rates. And if they’re rebuildable all I needs is a shock that fits and I can have it built to specs.

    Not sure how a shock can alter the mass of a car, other than if its heavier or lighter than the original shocks.
    Daily Drivers: R10, R12, R17T(?) Decouvrable

    In the Shed(s):
    R8 (1.4 motor, 4 shock rear end), Dauphine, Pugeot 404

    In the Past:
    Dauphine X2, R10 X lots, R12 X2, R16TS, R17TS

  11. #11
    Too many posts! JohnW's Avatar
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    https://www.autodoc.co.uk/car-parts/...r%5B0%5D=sachs

    These folk list the Estate rears....

    Not Koni but new....
    JohnW

    Renault 4CV 1951
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    National Co-ordinator, Renault 4CV Register of Australia

  12. #12
    1000+ Posts schlitzaugen's Avatar
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    Quote Originally Posted by Exfrogger View Post
    But if they’re adjustable surely that means you can alter damping rates. And if they’re rebuildable all I needs is a shock that fits and I can have it built to specs.

    Not sure how a shock can alter the mass of a car, other than if its heavier or lighter than the original shocks.

    The shock doesn't alter the mass of the car. What I said was that the effect of changing the damping is equal to changing the mass etc, etc, if keeping the damper the same. The point is all those things work together hence are designed that way. You can't change one and hope it will all be good.

    The adjustability of Konis is over that very narrow window I mentioned, can't compensate for the wrong choice of damper.

    Hmm. The "specs" are again a combination of factors. The fluid inside counts (viscosity), the piston mass, shock cross section, aperture openings in the valves, shock volume, etc. What you are saying is that someone can recalculate everything given a new shock body. Yes, it can be done, but who would do it for you and how much would it cost? Would you trust the corner shop to do it?

    Plus, if you have the wrong length you have the wrong travel, and that can't be changed that easily.
    ACHTUNG ALLES LOOKENPEEPERS

    Das computermachine is nicht fur gefingerpoken und mittengrabben. Ist easy schnappen der springenwerk, blowenfusen und poppencorken mit spitssparken. Ist nicht fur gewerken bei das dummkopfen. Das rubbernecken sightseeren keepen hands in das pockets-relaxen und watch das blinkenlights.

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