600 or 105 or Ultegra or Dura-Ace? Square taper BB or external BB?
I have a 600 in silver 50/42...plus a choice of two Shimano It threaded BBs.
@marxist_vulcan started
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600 or 105 or Ultegra or Dura-Ace? Square taper BB or external BB?
I have a 600 in silver 50/42...plus a choice of two Shimano It threaded BBs.