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2 comments
Fizik saddles have round rails if they're Kium or oval rails if they're carbon braided so yes there are possible issues for compatability with some seat posts (my Deda SuperZero is fine so if yours is a clamp like that it shouldn't be a problem).
Good to see it trickling down though as the carbon railed versions of the Anteres are brilliant. Stiffer than the Kium version and as a result great all day comfort.
I don't know if it is still the case, but the last new bike I bought came with a carbon railed saddle...
It needed a slightly larger clamp size for the carbon rails, and essentially tied me into carbon railed saddles, had I opted for it.
Not a reason not to do it, but beware of thinking it's a straight and easy swap.