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torgue on crank arm thingy

elderoneelderone Posts: 1,410
edited September 2013 in Workshop
hi does any one know what torgue I need to tighten the chain set on.I,ve put it on ok and pinched it up just need to torgue it.
thanks.
btw did a search couldn,t find anything.
Dulce et decorum est Pro patria mori

Posts

  • If it is the 2 pinch bolts on a shimano external BB crank then 12Nm. If it traditional crankbolts 40Nm
    http://www.thecycleclinic.co.uk -wheel building and other stuff.
  • elderoneelderone Posts: 1,410
    thanks, its a single bolt and the crank is the square one(if the crank is the bit that sticks out the bb).
    Dulce et decorum est Pro patria mori
  • deswellerdesweller Posts: 5,175
    Just do it up as tight as you can. Unless you're using a 1m breaker bar it won't be too tight.
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  • They can be done too tight I get them in the shop sometmes so tight that the bolt start to round that is not good. So far I have got everyone out but one day I won't. 40Nm please so you can get undone one day.
    http://www.thecycleclinic.co.uk -wheel building and other stuff.
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