Prologo

Nago R4 PAS Tirox Saddle

What Our Gearhead® Experts Are Saying:

"The Tirox rails hit a sweet spot—more compliant than carbon, but still supportive. On long gravel days, the added give makes a real difference in keeping fatigue at bay."

The Nago R4 PAS Tirox Saddle is designed for riders who want a supportive, adaptable platform with built-in compliance for road and gravel endurance. Its 245x137mm dimensions and semi-round T-shaped profile allow natural fore-aft movement, helping riders adjust posture when gradients and intensity shift. The set-back anatomical center provides a stable base for varying sit bone pressure, accommodating a wide range of riding styles and flexibility levels.

The PAS channel—running through the center of the saddle—reduces perineal pressure and improves comfort during extended efforts. Independent variable-density foam sections on each side of the saddle adapt to the pedaling cycle, maintaining support through both high-power and steady-tempo riding without feeling overly firm.

The Tirox rail construction, made from a lightweight alloy steel, introduces controlled flex that helps smooth rough pavement and washboard gravel. Paired with an injected-carbon base, the saddle strikes a balance between power-transfer rigidity and ride-long comfort. The structure remains stable under load while offering vibration absorption that makes long mixed-surface sessions more manageable.

Purpose-built for riders who want performance without the unforgiving stiffness of carbon, the Nago R4 PAS Tirox Saddle delivers reliable comfort, ergonomic shaping, and durable construction for long road, gravel, and XC rides.