The patented I-Beam system replaces the traditional saddle rail design with a single carbon composite beam. The benefits are a dramatic reduction in weight, 200% more fore-aft adjustment, and superior strength. The sleek new Kore saddle features an outstanding shape and is designed with a Flex shell for outstanding comfort. The seat post is made out of 2014 aluminum in a SuperOversize 34mm diameter for a strength to weight ratio that can’t be beat. Tilt is infinitely adjustable. And should you decide that you want to stick with your favorite Brooks or Flite saddle, you can fit the seat post with an adapter that will fit any railed saddle. The 2008 saddle/seat post combination is up to 80 grams lighter than last year’s I-Beam system.