The Cervelo SP24 Carbon Seatpost is a D-shaped design that works with their framesets equipped for this shape, such as the 2017 and 2022 releases of the R5 as well as the Caledonia-5. The UD carbon post matches the more aerodynamic seattube of the specified frames and has engineered compliance at a light weight.

Cervelo is offering the SP24 in both Zero offset and 15mm setback options. Unlike the SP18 and P19, the SP24 includes seat post head assembly, so you are are buying a complete seatpost. For those who require a 25mm setback model, Cervelo still offers the D-shaped SP18 in that option.