Limited Edition TDF model features additional Tour de France logo and inspired graphics integrated into the design. Super ergonomic flat nose saddle with a short slender nose and wide tail for improved power transfer in or out of the saddle. The increased 143mm width helps to distribute the weight of the athletes on a larger surface ensuring greater comfort for long rides. The wide anatomical channel �PAS� runs through the saddle along its central axis reduces the contact and compression of soft tissues and tendons eliminating numbness and helping to prevents prostate problems. T4.0 rail is a new redesigned chromoly rail with reduced weight while maintaining the same strength. PAS - features a channel in the seat to alleviate pressure and numbness in the pelvic region by promoting healthy perineal blood flow. Carbon injection monocoque base with light foam padding