Deda elementi superleggero 25mm setback seat postthis stunning seat post is engineered for road use as it offers amazing reliability and strength on your road bike adventures. It features a unidirectional carbon construction which allows you to benefit from its impressive stiffness without adding any excess grams to your ride. Deda has also installed a one bolt clamp system to this version which allows for fast and easy assembly. This makes it a highly efficient choice of upgrade for riders who want a firm hold on every ride. Features material unidirectional carbonuse roadsetback 25mmbolt 1 bolt clamp systemrail compatibility Ø7x9.5mm oval shaped carbon railsdi2 compatibility compatible with deda adaptor for di2 internal batteryweight 175g approxbuy deda components from chain reaction cycles, the world's largest online bike store.