Ritchey Pro Biomax Saddle with Cromo Rails: The Ritchey Pro Biomax Saddle has a vector wing design that dissipates vibrations & has a 35% carbon injected shell for stiffness & light weight. Vector wing design dissipates vibration Center section relieved for comfort 35% carbon injected shell for stiffness & light weight Cromo rails 131mm wide x 272mm long Weight: 210g Available in black or white Also available in WCS or Comp versions