How much better is the zr9000 compared to the alpha alum. The price difference at my LBS between the trek6700 and the trek8000 is about $350 bones.
Is it worth the upgrade? I more interested in the frame than in the components.
I've also heard that the zr9000 makes for a rougher ride.
What do you think?
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Thread: Trek Alpha Alum VS zr9000