The Scratch M5 PAS is the open version of Prologo’s acclaimed multidisciplinary saddle, redesigned for riders who demand the best in comfort, ergonomics, and performance. Whether you're racing on the road, grinding gravel, or pushing through a marathon XC ride, this saddle is engineered to deliver. Its innovative blend of compact dimensions, anatomical shaping, and cutting-edge materials makes it a go-to choice for both elite athletes and discerning enthusiasts.

With a compact footprint of 250 x 140 mm and a remarkably low weight of just 131 grams in the Nack version, the Scratch M5 PAS is tailored for unisex use across all cycling disciplines. Its round profile and anatomical T-shape offer superior support and versatility. The wider seating platform provides greater stability and freedom of movement, while the rearward anatomical center enables easy positional changes along the full length of the saddle. This structure is especially beneficial for riders with limited pelvic mobility, as it aids in maintaining a stable and efficient pedaling posture during intense efforts.

One of the standout features of the Scratch M5 PAS is Prologo’s MSS (Multi Sector System), developed in collaboration with the Politecnico di Milano. This innovation divides the saddle’s surface into five independent foam zones per side. These zones work actively and individually to support different phases of the pedal stroke—pushing and pulling—adapting dynamically to the rider’s movements. The result is improved biomechanical efficiency, reduced fatigue, and a smoother ride feel across changing terrain.

Another key technology is the PAS (Perineal Area System) channel that runs through the center of the saddle. This ergonomically designed groove helps eliminate pressure peaks that can lead to numbness or restricted blood flow. By reducing pressure in the perineal region, the PAS channel enhances long-distance comfort without compromising the saddle’s overall structure or support.

The Nack version of the saddle features ultralight rails constructed from a composite of carbon fiber, Kevlar, and aluminum filaments. These materials combine to offer an exceptional stiffness-to-weight ratio, making the saddle ideal for performance-focused cyclists. The base is built from long carbon fiber, striking a refined balance between responsiveness and vibration-damping comfort. This construction ensures excellent power transfer while reducing road buzz.

With its compact, race-tuned shape, ergonomic enhancements, and modular fit technologies, the Scratch M5 PAS delivers a level of performance that matches the demands of modern cycling disciplines. From weekend gran fondos to full-gas mountain bike races, it is a saddle that supports every ride, every mile, and every ambition.