Can you identify this Bottom Bracket

mplayer78
mplayer78 Posts: 24
edited September 2010 in Workshop
Can anyone help me with this. I need to know to so I can get the BB tool to fit it to remove it. If it is any help, it has 8 indents around the outside visible part and is on a bike fitted with a Shimano 105 groupset (few years old) so it may well be a shimano cup. bbpic.jpg

Comments

  • pitchshifter
    pitchshifter Posts: 1,476
    Looks like an octalink BB. I am looking to change mine for a newer cup bottom bracket and chainset. Not sure of the compatibility issues though...
  • father_jack
    father_jack Posts: 3,509
    Darn all these different types of BB :evil:
    Say... That's a nice bike..
    Trax T700 with Lew Racing Pro VT-1 ;-)
  • Weejie54
    Weejie54 Posts: 750
    Looks like a hex or an open key for the cup and a standard lockring spanner needed for the lockring.
    The right end of this spanner should do the trick (the other end might fit too):

    park-tools-bottom-bracket-lockring-spanner.jpg
  • skellator3
    skellator3 Posts: 200
    its an octalink bottom bracket and you need a splined bottom bracket removal tool to get it out, the notches are not for removal or installation
    dont only ride a bike
  • Weejie54
    Weejie54 Posts: 750
    If it's an Octalink BB (why don't posters clean the parts before taking pictures?) you need either a Shimano splined removal tool (which you probably will need for the drive side) or the standard lockring removal tool as illustrated in my previous post. The notches are for removal or adjustment (Shimano don't put them there for nothing). You will see a clean BB in this picture:

    sh15b-1.jpg
  • mplayer78
    mplayer78 Posts: 24
    Thanks for all the help, I promise to clean my bike before taking any more photos of it.

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