Torque settins

bruce225
bruce225 Posts: 129
edited March 2011 in Workshop
Got a Boardman team carbon that came with Ritchey parts all labeled torque to 5N/m, now iv'e gone and bought some Deda parts stem, seat post that say torque to 8N/m..

Thought the torque settings were to protect the carbon frame/steerer so which figures should i follow...

What figures should carbon be able to manage without any danger of damage...

Cheers

Comments

  • Smokin Joe
    Smokin Joe Posts: 2,706
    After torquing a carbon seatpot up to 5nm and then undoing it with an Allen key I can safely say that I have never done metal parts up as tight as that. I never bother with torque wrenches anymore, as long as you are not using an extension bar on the key and bouncing up and down like a gorilla just tighten it like you would any bolt.
  • mrjerome10
    mrjerome10 Posts: 69
    as long as you are not using an extension bar on the key and bouncing up and down like a gorilla just tighten it like you would any bolt

    Exactly as "Smokie Joe" said, tighten it until it's tight and you know it will not move under pressure.

    Good Luck ;)
    Specialized Allez Elite 2008
    Boardman HT Pro FS Team 2010
    Carrera Vulcan D Spec 2010
  • mrjerome10
    mrjerome10 Posts: 69
    Specialized_S-Works_Tarmac_SL2_side_view.jpg
    Specialized Allez Elite 2008
    Boardman HT Pro FS Team 2010
    Carrera Vulcan D Spec 2010
  • bruce225
    bruce225 Posts: 129
    Thanks..

    the last time when I went to 5N/m i was amazed how tight that was...So scared going up to 8N/m.
  • freddiegrubb
    freddiegrubb Posts: 448
    :oops: Buy yourself a reasonable torque wrench £30 ish. & stick with the original b/man values, torqueing is all about a repeatable value & reference point. If an item moves at 5nm. you know where you are in the " tightness scale" you can then turn it up to 6nm. After a lifetime in engineering I've seen more damage done by numties swinging on spanners & allen keys than you would believe. A little construction paste helps to keep the items in place as well as helping to reduce the chances of an item seizing to/inside another.
  • rake
    rake Posts: 3,204
    ive never done my team carbon parts up as high as 5nm. as said its quite tight if you have a feel for things. dont forget thats the maximum setting, not necessarily needed. my parts have never moved, must be about 3 or 4 Nm, i know because my ritchey torque key is a way off clicking. threads effectively gear things down, so the clamping force is much larger than the force on the handle.

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