The lightest in the range, offers Tour de France level comfort, efficiency, and speed with a redesigned silhouette that maintains the SLR racing bike seat shape \n Features cuttingedge technology, including a continuous carbon fiber skeleton and rails, for the best weighttostiffness ratio \n Precise comfort with the superlight EVA pad in key areas \n L3: “Wide” intertrochanteric distance and high pelvic rotation (Flow and SuperFlow saddles) \n S3: “Narrow” intertrochanteric distance and high pelvic rotation (Flow and SuperFlow saddles)