Product Description The revised Trail seatpost features a non-slip saddle mount and a screw clamp with many adjustment options. Whether you're riding a rough singletrack or want to get back on really fast, the saddle stays where you want it. Specifications:Application:All Mountain, Enduro, TrailDiameter:27.2 mm, 30.9 mm, 31.6 mmLength:400 mmSetback:0 mmTechnical Information:Clamp:2-boltCompatible Saddle Rails:7 x 7 mm (standard), 7 x 9 mm (oval), 8 x 8.5 mm, 7 x 9.6 mm (oval)Material:aluminium (7050)Approved For:Weight Limit:110 kg (gear + rider)Features:Series: WCS (World Championship Series), trail3D-forged aluminiumColour Index:blatte:black without gloss finishManufacturer Numbers:27.2 mm:4105542703230.9 mm:4105542703631.6 mm:41055427034Contents:1 x Manufacturer: Ritchey Design Inc. 575 Old County Road San Carlos CA 94070 USA info@ritcheylogic.com Distributor: Cosmic Sports GmbH Leyher Straße 47 90763 Fürth Germany info@cosmicsports.de