The new MSS- Multi Sector System, designed in collaboration with the Politecnico of Milano, improves comfort and performance. The active foams, separated from each other, create 5 mapped zones that work individually, supporting the normal pedalling movement both during the pushing and pulling phases. The round shape of the SCRATCH M5 allows the pelvis to rotate naturally, creating stability and support for the lumbar areas, it also favours the distribution of pressure over a larger surface.Base Material:Carbon Long Fiber:- This material improves the stability of the saddle base, providing reduced pressure and less reaction during the push & pull phase. In combination with the Tirox Rail the saddle guarantees excellent performance and comfort.Scratch M5:More ergonomic:- The foam follows the cyclist in the riding phase, supporting the leg thrust in both directions.NACK / TiROX RAIL:- pages/scratch-m5-saddles.characteristic.three.titleThis model has a greater rail excursion +15 mm, to optimize the best saddle positioning and anatomical center.