Genetic Karyotype Carbon Seatpost review

Very light seatpost that's also plenty strong

Our rating 
4.5 out of 5 star rating 4.5
GBP £79.99 RRP
Genetic Karyotype Carbon Seatpost

Our review

Lightweight post that works fine for heavyweight riders
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Tipping the scales at just 179g, this 350mm post will certainly appeal to the weight weenies out there.


The shaft and head are a single piece carbon fibre unit with a matt finish and an internal rib, which is essentially an extra strip of carbon that runs between the walls of the post to add strength. The alloy seat clamp is laid back 25mm (1in) from vertical and is a single bolt type, the serrated faces giving you as much angle adjustment as you could reasonably require. How well does it work? Well, we’ve had an 80kg+ rider on ours for several weeks and it hasn’t shown any signs of strain or movement… and that’s about all you can ask of a seatpost. Available in 27.2mm diameter only.

Product Specifications


Name Karyotype Carbon Seatpost
Brand Genetic

Diameter 27.2
Layback Yes
Length (mm) 350
Offset 25
Weight (g) 179
Material Carbon
Diameters Available 27.2mm