let 2 more psi out of your tires.
To me, a lot of parts make sense to be made out of carbon fiber. A crankset for example. Why Shimano is holding the line trying to make their stupid bonded hollow aluminum cranks work when carbon fiber is working well for everyone else is a mystery.
That said, I dont think a stem is a good application of CF. Much more expensive than a good alloy stem, and I dont think there is much, if any weight to be saved.
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