Prologo Nago R4 PAS Tirox Saddle

The Prologo Nago R4 PAS Tirox Saddle is an open, high-performance multi-discipline saddle developed for professional-level demands. Refined through Pressure Map MyOwn testing, it delivers outstanding performance and long-ride comfort for serious cyclists.

Legacy Of A Winning Platform: The 147 mm PAS version continues the evolution of the iconic Nago, first introduced in 2008 and a winner of Grand Tours and major Classics. It blends proven race heritage with modern ergonomic refinement.

Semi-Round Shape & 147mm Support: The ergonomic semi-round profile suits riders with medium pelvic rotation flexibility. Its 147 mm width offers a wider base of support, ideal for cyclists with broader sit bone spacing.

Dual Independent Padding Structure: The open design features two independent sections built with next-generation variable density foams. This construction enhances support through the full pedal stroke while improving overall comfort.

PAS Channel For Pressure Relief: The central PAS (Perineal Area System) channel reduces pressure peaks and numbness. It promotes better blood flow and maintains comfort during intense or sustained efforts.

Tirox Rail & Carbon Base Construction: The Tirox rail, made from light alloy steel, offers excellent vibration absorption and durability. Combined with an injected carbon base, it achieves a balanced mix of stiffness and riding comfort.

The Prologo Nago R4 PAS Tirox Saddle delivers open-channel comfort, race-level efficiency and dependable support for demanding road and multi-discipline cyclists.

We ship across India. Shipping is free on orders above ₹2,000, and ₹99 is charged on orders below ₹2,000. Cash on Delivery is available for orders up to ₹20,000, with additional COD charges based on order value. Most orders are delivered within 3–6 working days, though delays may occasionally occur. Please note that most Shimano products may take longer to ship. View full shipping policy.

Returns can be initiated within 7 days of delivery. Items must be unused, in original condition, and returned with all tags and packaging intact. Returns are available only on select categories such as apparel, helmets, jerseys, gloves, and similar items. Wetsuits and products discounted above 5% are not eligible for return.

Returns are not accepted for compatibility-related issues unless the product description on our website was incorrect. Return shipping must be arranged by the customer, as pickup is not available.

For eligible returns, you can choose an exchange, store credit, or a monetary refund. Refunds are processed after deduction of applicable shipping and transaction charges. Order cancellations are only possible before the order is processed. View full Return & Refund Policy.