Description | Extend Your Ride! Ride longer, ride farther with the eeSilk premium suspension seatpost. The eeSilk are comparable in weight to traditional rigid performance seatposts while offering 20mm of vertical compliance improving control on rough surfaces and reducing fatigue on long rides. These posts make great enhancements to endurance road bikes by reducing the chatter transmitted from the surface to the rider and can be tuned to rider weight through a simple elastomer change. 25mm longer than the eeSilk Carbon to accommodate shorter seat tube lengths. Equip with updated stainless steel pivot axles, and stainless steel hardware. Weighing in at 345g (27.2) Specs Post Aluminum Linkage Forged and machined aluminum arms Pivots Stainless Steel solid pins with IGUS Bushings. Elastomers Five elastomer spring rates available (#5 elastomer comes pre-installed from factory. Other weight elastomers sold separately) Travel 20mm Length 375mm (eeSilk) Weight 345g (eeSilk 27.2) Max Rider Weight 250 lbs. Offset 8mm Diameter 27.2mm, and 31.6mm