Selle San Marco Ground CFX NarrowSaddle designed from the ground up for aggressive terrain Support and relieving pressure where you need it Carbon DNA rails and a wider and softer front end than its competitors Lightweight carbon rails make it lightweight and reliable and strategically placed areas of double density foam ensure comfor TECH SPECS Model Ground CFX Narrow Size S3 Rails Carbon Color Black LxW (mm) 255x140 Weight 177g