ShockStop System - Seatpost

• Ride farther & more often - the ShockStop Endurance Seatpost reduces fatigue from bumps and vibrations with superior shock absorption. • Ride faster & reduce fatigue - energy that is normally wasted suspending your body is converted into forward motion. • Better performance & complete control - customize your suspension seatpost feel to float over obstacles and maintain traction and control.  Features  • 35mm of active suspension travel • Optimized linkage geometry provides ultra-responsive suspension feel • Infinitely adjustable stiffness via pre-load adjustment and swappable springs • Adjusting stiffness / pre-load does not reduce travel • Swappable springs included to accommodate heavier riders and/or ride preference • Di2 battery compatible with 27.2mm diameter x 350mm long size (see specs for details) • Check technical specifications for sizes & compatibility What's in the Box: • 1 x ShockStop Endurance Suspension Seatpost• 2 x springs (1 pre-installed,