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FSA
SL-K Carbon SB20

4.333333333333333 out of 5 stars
3 Reviews
$102.80
Color:Black Graphic

Size:

Quantity

Only 3 In stock

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SL-K Carbon SB20

Tipping the scales at a mere 222 grams, the FSA SL-K Carbon SB20 drops precious grams from your trusty steed while optimizing stiffness and ride quality. FSA's unidirectional carbon provides ample stiffness and vibration damping at a weight that's not much heavier than FSA's top-shelf posts. It's available with a 20 millimeter offset in either 27.2 or 31.6-millimeter diameters, at lengths of 350 or 400 millimeters. Available posts come with a polymer Di2 battery holder for keeping up with future drivetrain standards.


Details

  • Item #FSA003H
Material
[shaft] unidirectional carbon, [head] bonded alloy
Diameter
27.2mm, 31.6mm
Length
350mm, 400mm
Offset
20mm
Claimed Weight
[27.2 x 350mm] 7.8oz (221g)
Manufacturer Warranty
2 years

What do you think about this product?

Overall Rating

4.5 based on 3 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 1 reviews
4 Stars - 0 reviews
5 Stars - 2 reviews

Fits Slightly Large

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5 out of 5 stars

September 26, 2025

Great deal,

Familiarity:
I've used it several times

Bought a new MTB bike, needed some additional set back. This was a great deal on a carbon seat post.

Thomas C
Competitivecyclist.com

Originally reviewed on Competitivecyclist.com

5 out of 5 stars

May 19, 2025

Great Bang For The Buck

Familiarity:
I've used it several times

Found out a Fizik saddle will not work on a Specialized post so I snagged this. Did the trick and found the usual FSA quality and weight. Very happy.

JESFromASC
Competitivecyclist.com

Originally reviewed on Competitivecyclist.com

3 out of 5 stars

November 16, 2020

Not bad, but not what I expected

Familiarity:
I returned this product before using it

Product image on Backcountry.com is, apparently, not of the current model. Graphics are definitely different. Also, this stem didn?t fit well in my Cannondale Topstone. It extremely tight, making it difficult to install and adjust. Update: It looks like Backcountry updated the product image.

jfop48327

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Learn more about SL-K Carbon SB20