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RGM or AN Vernier Isolastic kits

Discussion in 'Norton Commando Motorcycles (Classic)' started by olympus, Oct 18, 2018.

  1. olympus


    Aug 5, 2017
    I appreciate that a lot of the components which RGM sell are indeed from AN, does anyone know if the Vernier kits sold by RGM are from AN??
    If not are the kits of an equal quality.
    Thank you
  2. KiwiNeill


    Jul 25, 2011
    Not sure, probably their own copies in stainless but I fitted the RGM rubber iso covers a while back, along with fork gaiters and both perished badly. Bought genuine AN replacements which have been much better so would choose theirs, and they tend to stand by their products if you have an obvious problem, in my case a faulty sprag and new cam followers with slight pits in brazing both replaced without hassle. Good people to deal with in my experience.
    RGM wouldn,t refund the original delivery postage this year when I returned their faulty stainless 850 exhaust roses that fitted neither my old RH4 head or the new Fullauto.
    Standard AN 850 roses fitted both perfectly.
    Last edited: Oct 18, 2018
  3. freefly103


    Apr 17, 2013
    The Iso rubbers I bought from RGM were hard and increased vibration (think 650cc Atlas). The AN rubbers were softer and significantly reduced vibration.

    Not much fun doing the same job twice but I can claim to have first hand comparison data.
  4. Onder


    May 11, 2010
    I have noticed that RGM offers softer rubbers as opposed to standard ones. Has anyone tried them? Im convinced that the the bonded later
    adjustable type are harder than the original separate pieces.
    ...of course I could be quite wrong.
  5. olympus


    Aug 5, 2017
    For the small difference in price, I'll be getting them from AN :)
    Many thanks Gents
  6. concours

    concours VIP MEMBER

    Dec 29, 2011
    Be VERY SURE to check the mating surfaces for A) flatness, and B) surface finish. The stainless kit I got, was conical shaped, and record grooved finish. :(o_O:mad: Which, will eat up the teflon washers.
  7. Craig

    Craig VIP MEMBER

    Dec 20, 2005
    I used the RGM kit along with their DT head steady with spring ... once getting Spring tension properly set .... Bike was transformed .... not sure buffers were softer type , positive they were softer than what came out though...
  8. 850commando


    Nov 1, 2014
  9. B+Bogus


    Jun 28, 2009
    I've fitted RGM Iso kits and the rubber is definitely a soft compound, similar to the original buffers.
  10. kommando


    May 7, 2005
    RGM do not deal with Norvil.
  11. no750


    Apr 7, 2016
    ive fitted the rgm venier isolastic kit 2 years and 4k miles ago. the threads have a lot of free play between the axle and the "ISOLASTIC ABUTMENT", so i am a little worried. although the the isolastic works perfect together with the dave taylor head steady. i donnot have any problems with vibrations.

    the rubber caps are getting porous, which is really annoying considering the effort to change them.

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