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.