Over the years Ridley has earned the reputation as a renowned frame builder through technological developments and high performance frame geometry. But even the fastest bike in the world needs human power to sprint to victory. A comfortable and yet efficient riding position is the key to success.Ridley’s Adjustable Seat Angle system allows a rider to adjust his or her saddle placement to achieve the perfect riding position. The ASA system consists of various integrated saddle clamps and aero seat-posts with variable offsets. The grid below explains which seat-angles can be obtained by simply changing the offset of your ISP saddle clamp or aero seat-post.