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SL-K Carbon SB20

3 out of 5 stars
1 Review

Style & Size:


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 a length of 350 millimeters. Both available posts come with a polymer Di2 battery holder for keeping up with future drivetrain standards.
[shaft] unidirectional carbon, [head] bonded alloy
27.2mm, 31.6mm
Claimed Weight
[27.2 x 350mm] 7.8oz (221g)
Recommended Use
cycling, mountain biking
Manufacturer Warranty
2 years

Overall Rating

3 based on 1 ratings

Review Summary

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3 out of 5 stars

November 16, 2020

Not bad, but not what I expected

I returned this product before using it

Product image on 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.

Jon F