I picked up the Zipp crank for it's light weight and because it was on sale. My theory is to create a decent 2x8/9 drive train by swapping the existing chain rings for a "tripleizer" style inner (38t 130mm) and a corresponding granny (74mm or 92mm it seems) say around 28-32t or so. I have a an 11-32 8sp cassette and could swap for an 11-34 depending on what will work better up front.
Anyone have experience with this? Advice? Brands (I've seen Shimano Dura Ace, Specialties TA, and StrongLight so far)?
Here are some examples of the tripleizer style ring:
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