🚴 Specialized S-Works Tarmac SL8 / SL7 + Darimo Carbon Seatpost
💡 Crazy Fact
The Specialized S-Works Tarmac SL8 is so light that pro builds sometimes dip under the UCI’s 6.8kg limit. Swap in a Darimo Carbon Seatpost and you’re not just saving grams — you’re flirting with the absolute minimum legal race weight 🤯
💥 Why this combo is pure magic
- 🔧 Perfect fit – 27.2mm round post for SL7 / SL8. Direct drop-in; no shims.
- 🪶 Ridiculously light – as low as 95g. About half the stock S-Works post.
- ⚡ Sharper acceleration – >100g shaved from the seat cluster makes climbs/sprints snappier.
- 🧬 Hand-laid carbon – made in Spain, tuned for stiffness + vibration damping.
- 🔩 Custom lengths – 300 / 350 / 400mm so you pick the lightest that fits.
- 🌈 Finishing options – Anodised Ti bolts.
- 🧘 Comfort built-in – subtle flex takes the edge off rough tarmac.
⚖️ Real-world weight savings
| Component | Approx. Weight | Weight Savings |
|---|---|---|
| Specialized S-Works Carbon Post | ~180g | — |
| Darimo 27.2 × 350mm | ≈ 95g | ≈ 85g lighter |
That’s like dropping a full espresso shot off your frame weight ☕💨
🛠️ Installation Notes
- Fits Tarmac SL7 & SL8 (27.2mm).
- Torque to max 4 Nm. Use carbon assembly paste.
- Works with 7×7mm round & 7×9mm oval rails (pick the right cradle).
- Rider limit up to 90kg. If you're heavier then let us know and we'll get it re-inforced (adds less than 20g)
🧡 Why riders love it
If you’re chasing the lightest, cleanest, most beautiful upgrade for your S-Works, this is it. It’s the part that makes people gasp when they lift your bike 😎
🧭 FAQs
Will the Darimo seatpost fit my Tarmac SL7 or SL8?
Yes. Both SL7 and SL8 use a 27.2 mm round post. Darimo is a direct drop-in — no shims.
How much lighter is it than the stock S-Works post?
Around 95g vs ~180g — about 85g lighter. You’ll feel it in handling and kick.
Is it strong enough for everyday riding?
Yes — handmade in Spain, EN-tested, and recommended up to 90 kg rider weight.
Can I use it with carbon saddle rails?
Yep — hardware for both 7×7mm and 7×9mm rails (select the correct cradle).
Do I need to cut the seatpost?
Usually no. Choose 300/350/400mm. If cutting, measure twice and use a carbon-safe saw guide.
Where is the Darimo seatpost made?
Valencia, Spain — with aerospace-grade carbon and titanium hardware. Each unit is weighed and signed off.
What’s the torque setting for installation?
Max 4Nm at the clamp, with carbon assembly paste.
Notes: Weights are approximate and vary with length/hardware. Always follow Specialized/Darimo documentation.