Zoom Sattelstütze 30 9 Fahrrad Sattelstange Patentsattelstütze 30,9 mm x 300 mm MTB E-Bike | pentagonsports.de
Race Face Chester Sattelstütze 30,9 x 325 mm
Amazon.com : Funn Crossfire Bike Seat Post, Length 350mm, Diameter 30.9mm, Aluminum Alloy AL6061, 3D Forged, One Piece Head and Shaft (Blast Black) : Sports & Outdoors