Prolog Nago R4 PAS Nack 137mm road bike saddle

Designed with input from professional riders competing in the Tour de France, the Prologo Nago R4 saddle features a clever design. It offers good freedom of movement and pedalling efficiency in all positions thanks to its 245 mm length, T-shape and forward-shifted anatomical centre. This saddle has a width of 137 mm, making it suitable for cyclists whose sit bones are not too wide. The semi-round ergonomic shape is ideal for cyclists with average pelvic rotation flexibility.

The Prologo Nago R4 PAS Nack 137mm is also comfortable thanks to its variable-density foam, which ensures good support. Prologo’s PAS system features a wide central channel to eliminate all pressure points during exertion. The shell, made from long-fibre carbon, is lightweight and rigid. This saddle is based on Nack rails, which are composed of carbon fibre, Kevlar and aluminium filaments. These will suit performance-oriented cyclists seeking maximum rigidity and lightness, as well as a comfortable saddle for long hours in the saddle.

Technical specifications:

- Colour: Black
- Size: 245x137mm
- Weight: 145 grams
- Long-fibre carbon shell
- Nack rails
- Variable-density foam
- PAS system with a wide central channel