Prologo NAGO R4 PAS NACK Saddle - 137 CPC WHITE/BLACK AM

Maximum Grip. Controlled Comfort. Pure Performance.

The Prologo NAGO R4 PAS CPC is the high-performance evolution of the iconic NAGO platform, enhanced with CPC – Connect Power Control technology for riders who demand uncompromising stability, comfort, and efficiency. Developed and refined through Prologo’s Pressure Map MyOwn testing, this open saddle is designed to meet the exact needs of professional and performance-driven cyclists, even on long and demanding rides.

Combining advanced materials, ergonomic shaping, and patented surface technology, the NAGO R4 PAS CPC delivers a perfect balance of power transfer, vibration control, and riding confidence.

Anatomical Shape & Rider Fit

T-Shape, Semi-Round Profile

The NAGO R4 PAS CPC features a T-shaped design with a wider seating area, allowing greater freedom of movement while maintaining stable support. The recessed rear anatomical center enables the rider to easily change position and make full use of the saddle’s length.

Its semi-round ergonomic profile makes it particularly suitable for riders with medium pelvic rotation flexibility, while the 137 mm width is ideal for cyclists with a moderate sit bone distance.

CPC Technology: Grip Where It Matters

Connect Power Control

The saddle cover is equipped with CPC technology, Prologo’s patented solution for the cycling world. Made from a unique 3D conical polymer nanostructure, CPC significantly improves:

- Grip and positional stability

- Vibration absorption

- Muscle efficiency and reduced fatigue

The CPC surface also promotes airflow, helping lower the temperature in the contact areas for improved comfort during long or intense efforts.

PAS Open Channel & Adaptive Support

The open version of the NAGO R4 PAS CPC features two completely independent saddle sections, constructed with latest-generation variable-density foams. This design ensures optimal support and comfort throughout every phase of pedaling.

The central PAS (Perineal Area System) channel is specifically engineered to eliminate pressure peaks and numbness, improving blood flow and maintaining comfort even during extended rides.

Carbon Base & Rail Options

The saddle is built on a long fiber carbon base, delivering strength, responsiveness, and durability.

- Nack rails (nano carbon fiber) for maximum stiffness and minimal weight

- Tirox rails (light alloy steel) for enhanced vibration absorption and a balanced weight-to-resistance ratio

Both options are engineered to deliver race-ready performance with refined ride quality.

Why Choose the NAGO R4 PAS CPC

- CPC technology for superior grip and vibration control

- PAS open channel for pressure relief and improved circulation

- T-shape and semi-round profile for freedom of movement

- Carbon base for efficient power transfer

- Designed for high-performance road riding and long efforts

Technical Specifications

- Area of Use: Road

- Saddle Dimensions: 245 × 137 mm

- Saddle Shell: Carbon

- Saddle Cover: CPC polymer with variable-density foam

- Shape: T-Shape, Semi-Round

- Perineal Relief: PAS channel

- Color: White

- Rail Options:

          - Nack (carbon fiber, Kevlar, aluminum filaments)

          - Tirox (light alloy steel)

Weight

- With Nack Rails: 160 g

- With Tirox Rails: 201 g

In the Box

- 1× Prologo NAGO R4 PAS CPC Saddle – 137 mm (White)