Genetic Karyotype Carbon Seatpost£79.99

Very light seatpost that's also plenty strong

BikeRadar score4.5/5

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.

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