Ritchey Comp Streem V2 Saddle with Steel Rails: The Ritchey Comp Streem V2 Saddle has a vector wing design which dissipates vibration & has a 35% carbon injected shell for stiffness & light weight. Vector wing design dissipates vibration Low-profile design & narrow shell 35% carbon injected shell for stiffness & light weight Steel rails 138mm wide x 280mm long Weight: 250g Available in Black or White Also available in Pro & WCS versions