The ShockStop Pro Race Suspension Seatpost delivers the ultimate 'race-tuned' suspension performance and up to 130 grams weight reduction compared to the original ShockStop Endurance Seatpost. This version combines coil spring and elastomer suspension technology to provide the best of both worlds; highly responsive to bumps and vibrations and subtle enough to disappear into the background while you smoothly deliver power. User adjustable stiffness lets you dial in the right feel to match your riding style. Race-tuned - the combination of coil springs and elastomers provides a progressive spring rate that lets the suspension work effortlessly to absorb the bumps and buzz of gravel or road riding, while still providing a firm foundation to maximize power delivered to the pedals Up to 25% weight reduction (130 grams) from original ShockStop Endurance Seatpost and ultra-sleek styling Reduces fatigue from bumps and vibrations so you and ride farther and more often Ride faster and reduce fatigue, utilizing energy that is normally wasted suspending your body, and is converted into forward motion 20mm of active suspension travel and optimized linkage geometry to provide an ultra-responsive suspension feel Customize your suspension feel to float over obstacles and maintain control Rider weight limit: 242 lb. Specifications Length350Travel (mm)20Seatpost TypeSuspension___cav_cc_1236_clsattr_261_suspensionMaterialAluminumClamp StyleStd RailsClamp Style7x9 RailsOffset (mm)7ColorBlackWeight415Diameter27.2Defined ColorBlack