Prologo NAGO R4 3D PAS Saddle - NACK 137 HARDBLACK AM

Pressure-Mapped Precision. 3D Comfort. Race-Ready Lightness.

The Prologo NAGO R4 PAS 3D represents the most advanced evolution of the iconic NAGO platform, combining data-driven ergonomics with cutting-edge 3D printing technology. Developed through Prologo’s exclusive Pressure Map MyOwn testing, this saddle is the result of a scientific analysis of pressure zones generated by both professional and amateur riders.

The outcome is an exceptionally lightweight, high-performance 3D saddle with a segmented adaptive cover, designed to respond precisely to the different pressure areas encountered throughout the pedal stroke. Every detail has been engineered to deliver maximum support, comfort, and efficiency, even under race-level demands.

Advanced 3D Printed Comfort

MSS + 3D Printing Technology

The NAGO R4 PAS 3D integrates MSS (Multi Sector System) technology with the latest 3D printing processes, creating five independent sectors on each side of the saddle. Each sector features unique geometric structures, densities, and elasticity coefficients to adapt seamlessly to the rider’s anatomy.

- Rear section: high density and elasticity to support the ischial tuberosities and enhance power transfer

- Three central sections: low density with medium elasticity to relieve pressure in sensitive soft-tissue areas

- Front section: medium density with low elasticity for stable support in aggressive, forward riding positions

This segmented construction ensures continuous comfort and stability in every riding phase.

Ultra-Light Construction

Weight reduction, a common challenge in 3D saddles, was achieved through extensive compression analysis, identifying low-pressure zones where material could be reduced without sacrificing comfort or performance.

- Long-fiber carbon saddle shell

- Nack (Nano Carbon Fiber) rails for exceptional stiffness-to-weight ratio

The result is a benchmark-setting saddle that weighs just 149 grams, redefining what’s possible in the 3D saddle category.

Why Choose the NAGO R4 PAS 3D

- Pressure-mapped design for optimized support

- Adaptive 3D printed cover with MSS technology

- Ultra-light construction without compromising stiffness

- Ideal for racing, fast training, and long road efforts

- Engineered for riders seeking maximum performance and comfort

Technical Specifications

- Area of Use: Road

- Saddle Shell: Carbon Fiber Injection

- Rails: Nack (Nano Carbon Fiber)

- Saddle Cover: Open 3D printed foam structure

- Length: 245 mm

- Width: 137 mm

- Height: 50 mm (lower edge of rails to top of shell)

- Rail Dimensions: Oval 7 × 9.3 mm

- Saddle Rail Adjustment Range: 60 mm

- Max Tightening Torque: 9 Nm

- Finish: 3D

- Color: Hard Black

Weight

- Manufacturer Claimed: 148 g

- Verified Weight: 153 g

In the Box

- 1× Prologo NAGO R4 PAS 3D Saddle – 137 mm