Stylus is a fresh new take on the 2 bolt seatpost the transition from the pillar to the saddle clamp assembly is a finned rearward swoosh suggestive in shape of the classic one bolt posts of yore but the clamp bolts are deployed to either side of the saddle support cradle conferring greater stability and easier adjustment stylus25 models set the clamp centre 25mm behind the centerline of the seatpost for riders who prefer to sit further back on the bike stylus25 team has a carbon fiber