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                | SDG I-Beam Pro | 
               
               
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                | Our new I-Beam Pro 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. The new clamp is forged for strength and receives 
                  an upgraded chromoly bolt. Laser etched measurements on the 
                  seat post let you get immediately to your preferred riding position. 
                  A Dahon exclusive.  See review. | 
               
             
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