Rail: Backrest size: 250 x 140 Weight: 132 g. Thanks to the new design, size, and "T Shape" ergonomics, the Scratch M5 is suitable for both men and women. The dimensions are 250 x 140 mm. The new multi-sector MSS system, developed in collaboration with the Politecnico di Milano, enhances comfort and performance. The separated active foams create five mapped zones that function individually, supporting the normal pedaling motion during the push and pull phases. The rounded shape of the Scratch M5 allows for a natural rotation of the pelvis, providing stability and support for the lumbar region while distributing pressure over a larger area. The PAS (Perineal Area System) is a channel designed to eliminate pressure peaks and numbness by improving blood circulation. Its special ergonomic design, supported by variable density foam, alleviates pressure points in the prostate and genital areas. The PAS channel is optimal for users who prefer performance combined with comfort on long and medium-distance rides.