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Detail Images

  • FSA - SL-K Carbon ITC Seatpost SB20/-10 - Red Logo
  • FSA - SL-K Carbon ITC Seatpost SB20/-10 - Black Logo

Current Color

  • FSA - SL-K Carbon ITC Seatpost SB20/-10 - Red Logo
  • FSA - SL-K Carbon ITC Seatpost SB20/-10 - Black Logo

FSA SL-K Carbon ITC Seatpost SB20/-10

sale $105.99 - $124.99

Free 2-Day shipping on orders over $50*

Select your style & size:

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  • Select options
    • Red Logo, 27.2mm, 350mm
      sale $105.99
    • Red Logo, 31.6mm, 350mm
    • Black Logo, 27.2mm, 350mm
      sale $105.99
    • Black Logo, 31.6mm, 350mm

    3 Reviews


    Find the perfect saddle position

    FSA’s lightweight SL-K Carbon ITC Seatpost SB20/-10 sophisticated features allows you to find the perfect saddle position at a reasonable price. The SL-K post is made with unidirectional carbon fiber, which saves weight and absorbs vibration. FSA uses its new Independent Top Clamp that allows for quick and easy adjustments with a broad tilt range in two different offsets (-10mm or 20mm).

    • Unidirectional carbon fiber
    • Independent Top Clamp
    • Convenient, independent adjustment of the saddle’s angle and position
    • Toggle between two different offset: -10mm or 20mm
    • Item #FSA001I

    Tech Specs

    [shaft] UD carbon, [head] bonded alloy
    27.2 mm, 31.6 mm
    350 mm
    20/-10 mm
    Claimed Weight
    [27.2mm] 230 g
    Manufacturer Warranty
    2 years
    Recommended Use
    road cycling, mountain biking

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

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    Best seatpost I've ever used

    • Familiarity: I've put it through the wringer

    This is an excellent, no nonsense seatpost. I ride Sella SMP’s. Due to their rail design they are devilish hard to keep from sliding backward over time on most seatposts. This seatpost, with 8.6nm clamping force ON EACH SIDE provides plenty of holding power. My SMP’s have remained as solid as a rock, even in hard racing conditions. Also, having never used a seatpost with a single bolt to hold the saddle angle I was skeptical; no need, that’s been rock solid too. Last but not least, I was also very pleasantly surprised to find that the ITC makes saddle adjustments extremely easy. Far easier and faster than any other post I’ve ever used. I highly recommend this seatpost.

    Just what I needed...

    • Familiarity: I've used it once or twice and have initial impressions

    I recently had my bike professionally fitted, and I went with a new saddle that ended up making for a sore bum. After a few weeks of trying to wear it in, I decided to go back to my original Selle Italia.

    One problem... the seat wouldn't allow enough adjustment, so it was set back 15mm too far.

    This seatpost has a 20 or -10 offset, so it solved my problem. It is pretty inexpensive for carbon, but it feels pretty good, and looks well made. Hey, as long as the saddle is on the post, I am happy.

    Just what I needed...