bb size

Discussion in 'Beginners Forum' started by indiabiker, Aug 23, 2010.

  1. indiabiker

    indiabiker New Member

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    how do i find the bb size of my circa 1992 trek 800. I wanna upgrade the crank and also the bb.
     
  2. Industry_Hack

    Industry_Hack Total noob (& forum admin) Admin Staff Tavern Member

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    Remove it, and see what it says inside. Unless you have some really big calipers.