Nago R4 3D PAS Carbon Saddle

What Our Gearhead® Experts Are Saying:

"I’ve been impressed with how the 3D-printed padding adapts to different riding positions. It distributes pressure better than traditional foam, especially on longer efforts. The shape gives you room to move when climbing or sprinting, and the carbon base keeps it feeling stiff and efficient under power."

The Nago R4 3D PAS Carbon Saddle represents the evolution of one of cycling’s most iconic performance saddles, integrating advanced 3D-printing technology with race-proven ergonomics. Designed for high-performance road, gravel, and cross-country riding, the saddle delivers precise pressure distribution, improved vibration damping, and exceptional structural efficiency while maintaining a remarkably low weight.

At the core of the saddle’s performance is Prologo’s 3D-printed Multi Sector System. This innovative construction divides the saddle surface into five mapped zones on each side, each with a specific density and elasticity tuned to match rider biomechanics. The result is a responsive structure that adapts to the rider’s contact points, reducing fatigue and improving comfort without sacrificing the direct feedback racers expect.

The PAS (Perineal Area System) central channel runs through the saddle’s support area to relieve pressure on soft tissues and promote healthy blood flow during extended efforts. Combined with the T-shape platform and semi-round anatomical profile, the saddle provides a balanced blend of stability and mobility, allowing riders to shift positions efficiently across different terrain and riding intensities.

Structurally, the saddle features a long-fiber carbon base engineered for maximum stiffness and minimal weight. Riders can choose between the Nack rail—constructed from carbon fiber, Kevlar, and aluminum filaments for elite-level lightness and rigidity—or the Tirox alloy rail, which offers a slightly more compliant ride with improved vibration absorption.

With dimensions of 245 x 137mm and a weight as low as 155 grams, the Nago R4 3D PAS Carbon Saddle stands among the lightest 3D-printed saddles available. Its combination of advanced materials, biomechanical design, and multi-discipline versatility makes it an exceptional choice for riders seeking performance gains across road racing, endurance rides, and fast off-road adventures.