The Nago R4 PAS AGX is the semi-round, T-shaped saddle that completes Prologo’s AGX line. It is the gravel version of the iconic Nago R4. AGX, which stands for Adventure, Gravel, Cyclocross, is a line of ergonomic saddles designed for gravel and all-road riding, built to provide the right balance between performance and comfort on every type of terrain, even over long distances. Compared to traditional models, AGX saddles feature a more flexible base made from next-generation materials and an extra 2 mm of padding made from low-density foams. These features ensure better shock and vibration absorption without limiting or compromising power transfer, even when riding on rough terrain. Specifications Dimensions: 245x137mm Weight: 197g Rail: Tirox Alloy Steel Shape: T shape with semi-round profile Grip: 3D Slide control The Signature T-shape offers improved freedom of movement and positioning, delivering comfort and protection in high-friction zones. The rear-positioned anatomical center allows the rider to easily shift positions and use the full length of the saddle. The Multi Sector System features separate, individually mapped zones on the saddle, each made with different interactive foams and single-cell padding. 3D Slide Control technology enhances grip and rider stability, helping maintain the correct position, even when riding off-road. The PAS (Perineal Area System) central channel eliminates pressure peaks and numbness by improving blood flow. The ergonomic design and variable-density foams help reduce pressure points in the perineal area. TiroX Rail (Light Alloy Steel): Engineered with a remarkable equilibrium between weight and strength, the TiroX rail offers enhanced comfort with superior vibration absorption, making it an ideal choice for those prioritising a comfortable riding experience.