Fizik antares r3 kium saddlethis fizik antares r3 kium saddle has been intentionally designed wider than the arione range and features a slightly curved profile which offers improved comfort lightweight and strongthis antares r3 kium saddle features increased weight distribution alongside a host of fizik technologies like the carbon thermoplastic composite shell and kium rail to combine strength and support fiziks wing flex gives flexibility where your thighs meet the saddle so you spin i