CRANKSETS: CRANK ARMS REMOVAL (JIS and ISIS DRIVE & OCTALINK)
I want to service or replace my bottom bracket. Is there anything special I need to know before removing my Isis Drive or Octalink crank arms?
Yes. As it has to do with the removal of crank arms, poor mechanical technique and planning can lead to ruined crank arms. Make sure the Jis or ISIS or Octalink splines are greased prior to installation. Upon disassembly, make sure the crank arm removal tool is fully threaded into the crank arm. FSA does not recommend using self-extracting crank bolts for the removal of Jis/Isis Drive crank arms. If present, remove the self-extractors and use a proper crank arm removal tool.