FSA SL-K Carbon SB0 seatpost review

Flash post that's ready to play rough

Our rating 
3.0 out of 5 star rating 3.0
GBP £65.00 RRP | USD $84.99
FSA SL-K Carbon SB0 seatpost

Our review

Designed to take the rough with the smooth with layback or inline heads
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FSA’s SL-K seat post has been redesigned with a lighter, slimmer head and a glam, sexed-up look that we actually prefer to their top-end K-Force line. 


This isn’t a carbon wrap job, either: it’s a carbon pillar with a redesigned, slimmer and more easily adjustable 6061 alloy head, plus a couple of sensible steel 4mm Allen bolts to adjust the saddle position and angle – we experienced no slippage.

The post shrugged off all the hurt we could inflict during our test. There’s plenty of material there and, even with some less-than-catlike landings on the saddle, we never had cause to doubt its resilience.


Our 350mm long, 31.6mm-diameter model weighs 235g. We’d have liked some millimetre gradients on the post in place of the centimetre ones provided (seatpost height is usually a millimetric measurement).

Product Specifications


Name SL-K carbon SBO seat post (10)
Brand FSA

Weight (g) 235
Material 6061 T6 Aluminium Carbon Fibre
Twin-Bolt Head Yes
Lengths Available 350mm
Diameters Available 31.6mm