SDG I-Beam™ Seat Post
Our new I-Beam seat post replaces our carbon fiber seat post and is lighter by 70 grams. The I-Beam seat post is made out of 2014 aluminum in a SuperOversize 34mm diameter. Laser etched measurements on the seat post let you get immediately to your preferred riding position. Combined with the SDG I-Flex saddle, the total system weight of the SDG post and saddle is a whopping 100 grams lighter than last year's carbon post and Ti rail saddle. A Dahon exclusive.