The SLR Series was introduced in 1999, and the 4th generation, the SLR Carbon's model has been redesigned with a new silhouette and improved lightweight performance. The total length of the saddle is 6 mm shorter than the previous model (3rd generation SLR Boost) and 9.5 inches (242 mm). This is the latest short saddle designed to be as short as possible while clearing the smallest size of 9.4 inches (240 mm) as defined by the UCI. The SLR Carbon 3D is the lightest 3D printed saddle with its unique print pattern and Carbon DLS technology. Different cushioning zones absorb graduated impact while the carbon rails maintain strength while providing comfort with every step of the pedal. Rail: Carbon Rail: Ø0.3 x 0.4 inches (7 x 9 mm); Size: S3: 5.1 x 9.6 inches (130 x 242 mm); 5.7 oz (137 g); L3: 5.7 x 9.5 inches (145 x 242 mm); 5.6 oz (143 g). Designed with a new carbon laminate structure (1 g). Lighter than previous (3rd generation SLR Boost). The unique pattern of the 3D printed cover has a different cushioning structure that absorbs impact graduated throughout the entire surface. Best balance of weight and vibration absorption The "Neutral" shape of this saddle accommodates a wide range of riding styles. Superflow technology is a large cutout in the middle of the saddle, which greatly reduces the pain caused by prolonged sitting pressure.