Prologo Nago R4 PAS 137 Saddle

The Prologo Nago R4 PAS 137 saddle is designed for high-performance road cyclists looking for low weight. It has a semi-round T-shape and comes with a choice of Nack or TiroX rails.

• Weighs just 138 g (137 mm version), useful when every gram counts on climbs
• The PAS system has two side sections of variable-density foam for comfort
• A central channel and cut-out base help relieve pressure on sensitive areas
• Injected long carbon fibre base for a stiff, lightweight structure
• How to choose: Nack has nano carbon rails, TiroX has lightweight steel alloy rails

Technical specifications

• Dimensions: 245x137 mm
• Weight: 138 g (137 mm version)
• Nack rails: Nano carbon fibre (carbon, Kevlar and aluminium filaments)
• TiroX rails: Lightweight steel alloy
• Base: Injected long carbon fibre
• PAS system: Two independent side sections of variable-density foam, central channel and cut-out base
• Shape: T-shaped, semi-round
• Intended use: High-performance road cycling
• Variants: Nack, black; TiroX, black

Founded in Milan in 2006, Prologo now has its operational headquarters in Busnago and offers saddles for road cycling, MTB and gravel, along with gloves, grips and handlebar tape. It developed MYOWN, a system that helps each cyclist choose a saddle based on their individual characteristics and cycling discipline.