This Cervélo seat post clamp secures a 27.2mm seatpost on R2, R3, R5 (2011-2016), C-Series, Áspero, Áspero-5, and Caledonia frames. Its squoval profile matches the oval-square seat tube shape used across these models, keeping the clamp seated correctly and distributing clamping force evenly around the post for a stable, creak-free connection.
Replacing a worn or damaged clamp restores proper seatpost retention without altering saddle height once reset, and the squoval shape prevents the post from rotating under load. Fitting directly to the frame's seat tube opening, it pairs with the factory bolt and wedge hardware typical of these Cervélo platforms, making it a straightforward swap during routine maintenance or a seatpost upgrade.
Quick Facts
| Feature |
Specification |
| Brand |
Cervélo |
| Seatpost diameter |
27.2mm |
| Clamp shape |
Squoval (square-oval) profile |
| Bike compatibility |
R2/R3/R-Series, R5 (2011-2016), C-Series, Áspero, Áspero-5, Caledonia |