1260 Front Brake Caliper Bolt Torque Setting

Discussion in 'Multistrada' started by Justatad, Jan 31, 2025.

  1. Bought some titanium caliper bolts, as the oem ones were pretty sorry looking
    Does the torque setting sound about right ?

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  2. On the 1200 DVT model torque spec is 45 Nm, always done mine to this spec including ti bolts, also apply grease
     
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  3. Reply appreciated
    Grease ? Not threadlock ?
     
  4. Also a quick Google for the 1260 get 45Nm .... im sure more educated ppl will confirm the correct torque but then you'll also get some scientific ppl who will tell you that Ti is different and torque will not be the same ... just know mine have never became loose and undo when ever I've needed too
     
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  5. Defo NOT thread lock
    My go to is Alislip had the bike for 8 1/2 years and done 34k and all been good
     
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  6. Never threadlock calliper bolts. Also ensure you align the callipers whilst you torque, there are a number of tutorials on how to install callipers online.
     
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  7. That's an AI-generated response, so you have no idea of the source. Better to look further into your search results for a known reliable source.
     
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  8. Sorry , what is AI generated ? Which reply are you referring to ?
     
  9. The Google response you've quoted, it's ai generated, meaning it's pulled it's response data from unreliable sources as when it comes to torque spec, it's not something that it will know as the workshop manual isn't indexed online without credentials to access it.

    The official torque spec for the 1260 calliper bolts is 45Nm with Shell Gadius on the threads. I know others use different grease, personally I try to stick as close to OEM as possible and having a tub of the above grease allows for many applications around the bike. There is also the argument that titanium bolts should be around 80% torque of the aluminium bolts, but I personally don't have enough experience to say if this is accurate or not.

    An important note about titanium bolts specifically though, is to thoroughly clean the fork threads before you do anything. I use a dog's toothbrush, brake cleaner followed by a blast from a compressor to clear the threads. If you don't, you run the risk of seize as titanium doesn't have the give the OEM bolts do and could bind on any residual grit.
     
    #9 freshage, Feb 3, 2025
    Last edited: Feb 3, 2025
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  10. Ah ok , I understand & very much appreciate your reply & help
    Steve
     
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  11. Thanks @freshage for clarifying my quick reply re AI :upyeah:
    Agree with your use of (Gadius) grease & thorough thread cleaning as Titanium-alloy bolt material is notorious for galling problems. The possible torque reduction for Titanium-alloy bolts needs a definite, reliable reference that I can't find right now. BUT - you mention Aluminium bolts which they are definitely not - the OEM bolts are steel!
     
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  12. Always learning :D
     
    #12 freshage, Feb 3, 2025
    Last edited: Feb 3, 2025
  13. Thanks to you too Keith_P
     
  14. On the subject, I'm trying to understand more on this as well as I never put much thought into the difference in metals and torque specs. Don't quote me on this, but it seems for greased bolts, torque remains the same, it's fixed bolts (thread locker) that may need a reduction in torque amount.

    Interesting, hopefully someone who is a metal nut can clear it up.
     
  15. Thread-lock products are generally made to have the same/similar effect as oil/grease, thus performing the same function of having a (approximately) known friction figure for calculating a bolt's tensile/clamping force from the applied tightening torque. Thus, in general, changing oil/grease for threadlock doesn't require any change on torque setting, but if the manufacturer has specified oil/grease there should be no need to use threadlock.
    'Dry assembly' is rare because of the propensity of some materials to gall (friction-weld or sieze together), however it is not unknown for some applications.

    Thread tightening science is all about knowing what materials and surface-finishes are being tightened against each other; knowing exactly what force is being generated in the bolt as it's tightened so it exerts the required/intended design clamping force. In most environments, these are mostly unknown factors outside a controlled manufacturing environment so we need good-enough methods to achieve the (approximately) correct condition for our tightened bolts, hence lubricated torque values...

    I recommend this website for in-depth information:
    https://www.boltscience.com/
     
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