Gemini ÄLSAK Carbon Seatpost 30.9mm

A carbon monocoque seatpost in 30.9 mm, with a forged carbon clamp head pressed at over 100 tons and full titanium hardware.

The dropper-diameter round post for riders running rigid — unibody carbon shell, no bonded joints, made by hand in Barcelona and tested before it ships.

The numbers

• Diameter: 30.9 mm · offset 0 mm
• Lengths: 250 / 300 / 350 / 400 mm — custom to 500 mm on request
• Clamp: forged carbon head, fits round and oval rails · titanium hardware throughout
• Laminates: Lightweight (up to 90 kg) / Performance (up to 120 kg)

Finish

UD matte standard; UD gloss, 12K gloss and 12K matte available, plus Custom Lab one-of-one finishes.

Made to order

Typically four weeks. We confirm the lead time in writing before taking payment. Three-year warranty and crash-replacement programme.