Features a UD carbon shaft with a bonded alloy head that's lighter and stiffer than ever.UD Carbon shaft with bonded SBS 2-bolt alloy head
6061-T6 alloy and carbon fiber 3K weave tubular construction
UD Carbon finish
Crhromoly steel hardware
Optimized for performance with a 400mm length option, this carbon seatpost offers enhanced stiffness, reduced weight (just 235 grams), and reliable compatibility with Di2 and non-Di2 electronic shifting systems.