The Cervélo S5 is built for speed. Aero-first, race-only, and brutally efficient when the pace stays high.
If you’re building an S5 properly, you already know the game: marginal gains, clean integration, and no wasted grams.
This Darimo carbon seatpost is built specifically for the Cervélo S5 aero profile and is designed to match the original fit and riding position.
Important fit note: On the S5, Cervélo’s “straight” seatpost is +8.5mm offset (it is not 0mm). This Darimo version follows that same geometry.
Why Upgrade the S5 Seatpost?
- Significant weight reduction vs OEM
- Matches Cervélo S5 “straight” geometry (+8.5mm offset)
- Hand-laid carbon construction
- Built to order in your required length
Specifications
- Model-specific Cervélo S5 aero profile
- Offset: +8.5mm (Cervélo “straight” equivalent)
- Custom length (do not cut)
- UD matte or finish options available
Important: Darimo seatposts are ultra-light structural components and are not designed to be cut. Order the correct length for your saddle height. Torque settings must be followed precisely.
FAQs
Is this the straight or setback seatpost?
This is the Cervélo S5 “straight” version. On the S5, “straight” equals +8.5mm offset (not 0mm). This Darimo post matches that geometry.
Can I order a 0mm version for the S5?
Not for this model. The S5 platform is designed around Cervélo’s “straight” post geometry, which is +8.5mm. If you’re unsure what you currently have, send a photo and we’ll confirm before ordering.
Can I cut the seatpost to size?
No. Darimo seatposts are not designed to be cut. Trimming can compromise structural integrity. Order the correct length required for your saddle height.
Does this affect Di2 compatibility?
The modern Cervélo S5 houses electronic batteries inside the frame, not the seatpost. The Darimo post installs like the original and does not affect electronic groupset compatibility.
Is it strong enough for racing?
Yes. It is engineered for high-performance road use including racing. Correct torque settings must always be followed.
What is the lead time?
Most Darimo seatposts are made to order. Typical lead time is approximately 4 weeks.