Meet the Transfer SL. At 128 grams (25%!) lighter than the regular Transfer post, it's the lightest mainstream dropper post on the market. Compatible lever options for flat bars, drop bars, and 1x and 2x drivetrains, it (finally) brings the word "shred" into the super lightweight XC and Gravel conversation scene. Factory says it all. The best-of-the-best technology from FOX is available in the Factory Series models, featuring the buttery smooth, ultra durable Genuine Kashima Coat. These products are World Cup proven.2-position mechanical post that locks at the top and bottom onlyItem SpecificationsActuationCable RemoteAdjustmentIndexedCable RoutingInternalClamp StyleStandard RailsColorBlack / Kashima CoatDefined ColorBlackDiameter31.6Length455MaterialAluminumMin Height330Offset (mm)0Travel (mm)125 FOX Transfer SL Factory Dropper Seat Post Dropper Seatpost UPC: 821973437507