![Cannondale HollowGram SAVE Carbon Seatpost w/ Accessory Mount (Black) (27.2mm) (400mm) (15mm Offset) - Performance Bicycle Cannondale HollowGram SAVE Carbon Seatpost w/ Accessory Mount (Black) (27.2mm) (400mm) (15mm Offset) - Performance Bicycle](https://images.performancebike.com/cdn-cgi/image/f=auto,width=950/images/large/bikes/cannondale/cp2202u1040_1.jpg)
Cannondale HollowGram SAVE Carbon Seatpost w/ Accessory Mount (Black) (27.2mm) (400mm) (15mm Offset) - Performance Bicycle
![Amazon.com : Cannondale C2 Di2 Compatible Bicycle Seatpost (Black - 25.4mm x 400 mm) : Sports & Outdoors Amazon.com : Cannondale C2 Di2 Compatible Bicycle Seatpost (Black - 25.4mm x 400 mm) : Sports & Outdoors](https://m.media-amazon.com/images/I/517j1IMAWoL._AC_UF1000,1000_QL80_.jpg)
Amazon.com : Cannondale C2 Di2 Compatible Bicycle Seatpost (Black - 25.4mm x 400 mm) : Sports & Outdoors
![Cannondale HollowGram SAVE Carbon Seatpost w/ Accessory Mount (Black) (27.2mm) (400mm) (15mm Offset) - Performance Bicycle Cannondale HollowGram SAVE Carbon Seatpost w/ Accessory Mount (Black) (27.2mm) (400mm) (15mm Offset) - Performance Bicycle](https://images.performancebike.com/cdn-cgi/image/f=auto,width=950/images/large/bikes/cannondale/cp2202u1040.jpg)
Cannondale HollowGram SAVE Carbon Seatpost w/ Accessory Mount (Black) (27.2mm) (400mm) (15mm Offset) - Performance Bicycle
![Help with this road bike seatpost, please. It's carbon fiber and is made by Cannondale. It's marked "C1" and "Aero". I can't find this exact seatpost anywhere online after an extensive search. Help with this road bike seatpost, please. It's carbon fiber and is made by Cannondale. It's marked "C1" and "Aero". I can't find this exact seatpost anywhere online after an extensive search.](https://i.redd.it/help-with-this-road-bike-seatpost-please-its-carbon-fiber-v0-kvl9vh2t9pya1.jpg?width=1937&format=pjpg&auto=webp&s=2dae8c7ec7b611ecac0ea18ee65a68ae318069e6)