concept sl sattelstütze ÄLSAK - Carbon seatpost for Specialized / S-Works Tarmac SL8

concept sl sattelstütze ÄLSAK - Carbon seatpost for Specialized / S-Works Tarmac SL8ALSK is our ultralight seatpost specifically for your Specialized or S Works Tarmac SL8 . Its body is conceived as a continuous carbon shell . This design allows the carbon fiber to work stretched throughout the entire geometry, achieving an extremely light and resistant structure, while the fixing system is made of forged carbon , a cutting edge material, and all the screws are made of Titanium , to lighten your bike as much as possible and make you

ALSÄK is our ultralight seatpost specifically for your Specialized or S-Works Tarmac SL8 .

Its body is conceived as a continuous carbon shell . This design allows the carbon fiber to work stretched throughout the entire geometry, achieving an extremely light and resistant structure, while the fixing system is made of forged carbon , a cutting-edge material, and all the screws are made of Titanium , to lighten your bike as much as possible and make you feel like you're flying with it.

We handcraft each seatpost in our Barcelona workshop , using our own technology and the finest carbon fiber. That's why this seatpost is unique, an exclusive piece, with limited production, so you can reduce the weight of your bike with design and personality.

• Available Carbon Laminate Configurations :

  • Lightweight (default) : from 65 g, maximum lightness and comfort (maximum rider + bike weight of 90 kg)

  • Performance : +35 g, increased rigidity, crash resistance, and power transmission. (maximum rider and bike weight 130 kg)
• Displacement:
  • 0 mm.
• Finish:
  • Standard: UD fiber finish and matte lacquer (smooth black aesthetic)
  • Customized (extra cost): UD fiber finish lacquered in gloss, 12K fiber lacquered in gloss or matte.
  • Custom Lab (extra cost): Take your seatpost painting to the next level, contact us and make your seatpost unique!