Darimo Carbon Seatpost for Specialized S-Works Tarmac SL8
Crazy fact: If Darimo, Alpitude, and Schmolke have all bothered to engineer an SL8-specific post, it’s because the SL8 is one of the few modern frames where the seatpost is still a meaningful place to cut grams without compromising the build.
This is where the serious SL8 builds go next
The S-Works Tarmac SL8 is already brutally optimised — stiff, fast, and aero. At this level, the “easy upgrades” are gone.
The Darimo SL8 seatpost is for riders who keep going anyway: less mass up high, cleaner feel on rough roads, and no excess material.
Why weight weenies care about seatposts
- ⚖️ Extreme weight saving
- 🧠 SL8-specific D-profile fit
- 🧱 No excess material
- 🖤 Subtle Darimo decals
- 🛠️ Handmade boutique carbon
Important — read this before buying
- This seatpost must NOT be cut
- Cutting can compromise structural integrity
- Torque settings must be followed carefully during installation
FAQs
Is this seatpost designed specifically for the S-Works Tarmac SL8?
Yes. This Darimo model is built to suit the proprietary D-shaped seatpost used on the S-Works Tarmac SL8, with the correct profile and interface for that frame.
Can I cut the seatpost to fine-tune saddle height?
No. Darimo seatposts are engineered to be used at full length. Cutting the post is not recommended and may compromise strength.
How does this compare to other boutique SL8 seatposts?
It’s the “absolute minimal mass” approach: fewer grams, no redundant material, and a purpose-built SL8 fit. If you’re cross-shopping Alpitude or Schmolke, you’re already in end-game territory — this is the same lane.
Will this affect ride quality?
Most riders notice reduced road buzz and a more controlled feel over rough surfaces — especially on the SL8’s very stiff chassis — without turning the bike soft or vague.
Who is this seatpost actually for?
Riders building an SL8 where every component choice is deliberate — and where grams, fit precision, and clean execution matter more than “good enough”.