ISM PN 4.0 Saddle Black

5mm wider than the PN 3.0 (125mm) for increased sit bone support.
Performance Narrow design with enhanced comfort for road and gravel riding.
Tapered-edge mould design reduces pressure points.
Auto-racing inspired air vent chassis for improved airflow and weight savings.
Noseless saddle design helps reduce pressure and numbness.
30-Series foam padding for balanced performance comfort.

The ISM PN 4.0 Saddle is the latest addition to ISM’s Performance Narrow range, designed to offer increased support while retaining the speed and freedom of movement narrow saddles are known for. Based on the award-winning PN 3.0, the PN 4.0 features a wider 125mm rear platform, responding directly to rider feedback from road and gravel cyclists.

By increasing the sit bone contact points by 5mm, the PN 4.0 better accommodates a wider range of pelvic positions and allows for a more relaxed pelvis tilt. This makes it an excellent choice for endurance road riding, gravel adventures and riders who want slightly more support without moving to a wider saddle category.

Like all PN saddles, the PN 4.0 delivers superb thigh and hamstring clearance, allowing riders to move freely around the saddle and confidently dive into fast corners. The noseless saddle design helps remove pressure from soft tissue, promoting healthy blood flow and reducing numbness on longer or more intense rides.

Suitable For:

Gravel Bikes
Road Bikes
Triathlon Bikes
Time Trial Bikes

Technical Specifications:

Brand: ISM
Model: PN 4.0
Category: Performance Narrow
Length: 255mm
Width: 125mm
Padding: 30-Series Foam
Rails: Proprietary Stainless-Steel Alloy
Rail Size: 7 x 7mm (Standard)
Colour: Black
Discipline: Gravel, Road, Triathlon and Time Trial Cycling

Type	Adult Saddles
Discipline	Gravel, Road, Triathlon and Time Trial Cycling
Padding Type	Polyurethane Foam
Length	255 mm
SKU	362347