Cannondale HollowGram SAVE Light-Mount Carbon Seatpost 15mm OffsetThe Cannondale HollowGram SAVE Light-Mount Carbon Seatpost has been proven in the world’s most challenging bike races. Light, comfortable and incredibly functional. The ultra-light continuous carbon fiber layup offers just enough compliance to take the edge off without sacrificing power transfer. There is a Friction Flange mount included for accessories. Easy adjust two bolt head for fine tuning ride position. Has a 15mm offset. Compatible with round, oval, and both metal and carbon rails.884603956861