These posts make great enhancements to gravel or mixed surface bikes by reducing the chatter transmitted from the surface to the rider and can be tuned to rider weight through a simple elastomer change.

Bolt-on compliance: Up to 35mm of travel to add comfort and suspension on gravel and mixed-surface rides without adding unnecessary weight to the bike.
Parallel-linkage design: Parallel linkage technology stays in the direct path of the natural travel of the rear wheel. As a bump lifts the back of the bicycle, the rear wheel pushes up and forward into the rider.
Easy elastomer change: The eeSilk+ seatpost can be tuned for different rider weights and riding styles by selecting the elastomer that best fits rider needs and preferences.
The eeSilk+ seatpost is shipped with a Medium elastomer installed. Extra Soft, Soft, Firm and Extra Firm elastomers are sold separately.

110lb (50kg) = #1 Elastomer*
100-160lb (45-73kg) = #3 Elastomer*
150-210lb (68-95kg) = #5 Elastomer
200-250lb (90-113kg) = #7 Elastomer*
200-250lb (90-113kg) = #9 Elastomer*