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Prologo Nago R4 PAS Tirox 137 Seat

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RRP £114.99
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The NAGO R4, the culmination of Prologo's rich heritage and innovative design, encompassing the legacy of triumphs and achievements that have defined the brand's history from its inception. With a legacy of victories in prestigious events such as the Tour de France, Giro d’Italia, and World Championships, the NAGO saddle has been the choice of renowned champions like Bradley Wiggins, Alberto Contador, and many more, solidifying its status as an iconic symbol of cycling excellence.

Designed from the needs of professional teams supported by Prologo, the new saddle has been perfected through "Pressure Map MyOwn" testing to meet the needs of all cyclists seeking maximum performance and comfort even for long rides.

The NAGO R4 represents the ultimate fusion of innovation, performance, and comfort, ensuring every cycling endeavor provides the excellence and advancement that Prologo embodies. Experience the pinnacle of cycling performance with the NAGO R4, where tradition meets cutting-edge technology.

Key Features:

  • NAGO R4 PAS: Incorporates two independent lateral sections made of state-of-the-art foam with variable density, ensuring optimal support and comfort during all stages of the ride. The Prologo PAS system, integrates a spacious central channel and perforated base to mitigate pressure peaks even during rigorous pedalling.
  • Minimal and Functional Design: The sleek design cover highlights the anatomical center for precise positioning, while the back of the cover displays model specifications and geographic coordinates, paying homage to Prologo’s headquarters in Busnago, near Milan, Italy.
  • Long Carbon Fibre Injected Base: All versions of the NAGO R4 feature a Long Carbon Fibre Injected base, striking the perfect balance between rigidity and comfort, ensuring an unparalleled riding experience. Weight: Varies based on specifications.
  • 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 prioritizing a comfortable riding experience.


  • Dimensions: 245x137mm
  • Weight: 195g
  • Rail: Tirox Light alloy steel


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We send all orders as quickly as we can which is normally the same working day if ordered before 3pm (Monday to Friday excluding Bank Holidays). Small packages are sent using Royal Mail First Class, Tracked 48 and Special Delivery for higher value items. Bulkier items like Wheels, Frames and Home Trainers are sent with one of our couriers either DPD or DHL. All orders are fully insured and most will require a signature on delivery. Standard delivery is 1-2 working days. Order places over the weekend or on Bank Holiday will be sent with our next working day collection.

We have thousands of items in stock ready to despatch from our large warehouse.

  • In stock - Ready to despatch - In stock in our warehouse ready to ship out normally the same working day when ordered before 3pm
  • In stock - 2 - 3 day despatch - In stock in our suppliers warehouse. Once we receive your order we will order from our supplier and ship out to you as soon as the item arrives in our warehouse.

We offer an optional Next Working Day Delivery service for orders placed before 3pm. (Next Working Day Delivery when ordered Monday to Friday Before 3pm - Excluding Bank Holidays). Depending on the size and weight of the item and your postal location we send with Royal Mail Special Delivery 1pm our Courier DPD or DHL on their 24 hour service. Remote Highland and Island locations may not be guaranteed next working day.

International shipping rates are calculated by the weight and value of the items and the country they are being shipped to. To get a shipping quote just add the items to your basket and use the Shipping Estimator at the bottom of the basket page to calculate the shipping rates to your country. Depending on weight and value of your order we send with Royal Mail Standard Airmail, Signed For or Tracked service. Standard delivery time is 5-15 working days for most European countries and 5-25 working days for most other countries.

We offer DHL Express as a much quicker delivery option for Europe, US and Worldwide. Most of Europe and USA is 1-2 working day delivery. Other countries 2-4 working days.

Please be aware that Import Duties, Local Taxes and Courier handling fees may be payable when importing into most countries. The UK is no longer part of the European Union so import charges will be due when shipping to most countries.

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