Yes the ISIS drive is the one you will need to install ....
it with a Campy gruppo. FSA Makes replacement BBs that are compatable with Campy cranks, but you are changing out the Campy cranks for FSA cranks. You can match any FSA cranks with the Campy gruppo as long as they match the drive train gearing, ie. 9 speed with 9 speed, 10 speed with 10. Which FSA cranks have you decided upon?
Actually, there is so little difference in the chainring spacing that either the models made for Shimano 9 or Campy 10 will work fine. I have one of each and don't notice any difference in the quality of shifting.
You can then choose from Shimano's octalink or an ISIS bottom bracket. The Campy 10 models all use ISIS. I chose the ISIS.
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