Specialized S-Works 400mm 30.9mm Carbon Seat Post

The S-Works Carbon seatpost is constructed from FACT carbon, so you get the perfect blend of high durability, stiffness, and comfort. A cylindrical aluminum head assembly, meanwhile, makes fore/aft and tilt adjustments super easy with an easy-access, single-bolt design. 30.9mm diameter. 400mm length. 10mm off-set. 184g. For gravel or off-road use.