Cranks and the Ergomo

So I was wondering what type of cranks the SRAM force were (ISO Vierkant / Octalink / ISIS) . I was thinking about getting an ergomo but i really dont want to have to buy the cranks. I looked on the SRAM website, but I could not find the answer. Help?

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The SRAM Force cranks are Hollowtech II style with integrated BB, so there is no way to use them with Ergomo. Personally, I would go for Octalink. With ISIS there sometimes are tolerances big enough to ruin your Ergomo BB - what happened to me. Luckily, Ergomo agreed, when they saw the crank and the BB and replaced the BB. With "Vierant", you have to be carefull, if it´s a crank with a ISO or an JIS style. My girlfriend tried an Storck crank it did not work. So, if you choose ISIS or Vierkant, take the Ergomo crank.

SRAM Force uses an external BB, and is not compatible with Ergomo. If I were to buy another Ergomo, I'd go with a square-taper (ISO Vierkant) BB and crankset.