The Eclat Bios Slim Pivotal Seat features Eclat's newly designed base for maximum strength and durability. These seats are a huge improvement in functionality and aesthetics over the traditional Pivotal seat design in the fact that the nose and rear are specifically designed to withstand more abuse than a traditional style base. “Performance Black” version features a high-tech multi-compound top cover with grippy rubber side panels for added support on barspins.