

Prologo Nago R4 PAS road bike saddle
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Join nowThe Prologo NAGO R4 PAS (Redesign 4) is the latest evolution of the iconic NAGO series of bicycle saddles, a saddle that has won numerous victories since 2008, including in the Giro d'Italia and multiple classics. This high-performance saddle was developed based on the requirements of professional cycling teams, including Team Visma | Lease a Bike.
Advanced design for top performance
The NAGO R4 PAS has been optimized with “Pressure Map MyOwn” testing to provide maximum support and comfort for riders of all levels. The compact dimensions (245 mm length) and T-shape ensure optimal freedom of movement and pedaling efficiency in any position. The semi-circular ergonomic shape is specially designed for cyclists with a medium pelvic rotation, while the narrow width (137 mm) is ideal for riders with a narrower seat leg distance.
Innovative technologies for optimal comfort
This saddle features an open design with two fully independent sections, made from the latest generation of variable density foam. This ensures excellent support and optimal comfort, regardless of the intensity of your ride. Prologo's integrated PAS system - a wide central channel with vents - eliminates pressure points even during maximum pedal force.
The base of the saddle is made of long-fiber carbon, offering a perfect balance between stiffness and comfort. The high-quality 'Nack' saddle rails, an advanced blend of carbon, kevlar and aluminum filaments, create an ultra-light and extremely stiff saddle. This makes the NAGO R4 PAS the perfect choice for performance-oriented cyclists who, like the riders of Team Visma | Lease a Bike, are looking for maximum efficiency and minimum resistance.
Do you want to ride with the same technology as our pros? Then choose the Prologo NAGO R4 PAS and experience the difference!