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Crew Bike Co. - Our Aero Alloy Seat Post & Street Saddle combo on the Matte Black District 🙌 | Facebook
Amazon.com: Carbon Bicycle Seat Post,27.2/30.8/31.6 * 350/400mm,fit in Road Bike Seatpost Mountain Bike Seatpost,Black (Color : 3K Extinction, Size : 31.6 * 400mm) : Sports & Outdoors
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.
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