ISM Saddle PN 4.0 Black L-255 / W-125 Stainless Steel Alloy Rails

ISM Saddle PN 4.0 Black L-255 / W-125 Stainless Steel Alloy Rails

Brand: ISM

SKU: JYAJV5XV

$379.00 Full price

$379.00

Club price

$399.99 Full price

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Product Details

Description

The ISM PN4.0 is the newest offering in the Performance Narrow category of saddles. Similar in design to the award-winning ISM PN3.0, we increased the sit bone contact points 5mm to accommodate a range of pelvic/body positions. Rider response told us some cyclists wanted a 125mm saddle to allow for more relaxed pelvis tilt related to road and gravel cycling.

Like the other PN saddles, the PN4.0 offers superb thigh and hamstring clearance. This allows for more rider body movement around the seat and is great for diving into fast corners.

Like all ISM saddles, the PN4.0 is nose-less and designed to remove pressure from soft tissue, ensuring maximum blood flow, no genital numbness, and a healthier, more enjoyable ride.

Key Features:

5mm wider than the PN3.0 to accommodate a greater range of sit bone width

Tapered-edge mold design for incredible comfort

Auto-racing inspired air vent chassis

Commonly Used For:

Gravel/Road bikes

Time Trial bikes

Tech Specs:

Category: Performance Narrow

Length: 255mm

Width: 125mm

Padding: 30-Series Foam

Rails: Proprietary Stainless Steel Alloy

This saddle is not recommended for cyclists who ride with a high seat position or those who ride very forward on the extreme front of the saddle (the front arms or the nose of a traditional saddle). The recommended seat height for these saddles calls for a 32-37 degree knee bend for the rider. If you ride with a minimal bend or a straight leg a different ISM saddle is recommended for you.

Specifications

Product Overview

Product

ISM Saddle PN 4.0 Black L-255 / W-125 Stainless Steel Alloy Rails

Brand

ISM

Year Model

2023

Frequently Asked Questions

What is the ISM PN 4.0 Saddle used for?

The ISM PN 4.0 Saddle is used on gravel/road and time-trial bikes to remove pressure from soft tissue, maximize blood flow, and support a range of pelvic/body positions.

Why choose the ISM PN 4.0 Saddle?

Choose it for pressure-free riding, increased sit-bone contact width (5mm more than the PN3.0), excellent thigh clearance, and performance features that enhance cornering and movement.

Who is the ISM PN 4.0 Saddle designed for?

Designed for riders wanting a 255mm long, 125mm wide saddle with nose-less design for relaxed pelvis tilt, suitable for road/gravel and time-trial applications; not recommended for riders with a very high seat position or who ride very forward on the saddle front.

Nose-less Comfort, Wider Fit

Nose-less design removes soft-tissue pressure for a healthier ride. 5mm wider than the PN3.0 to accommodate a greater range of sit bone widths.

Superior Thigh Clearance for Aggressive Handling

Keeps superb thigh and hamstring clearance for dynamic movement around the saddle. Great for diving into fast corners on gravel, road, or time trial setups.

Optimized Blood Flow with Performance Materials

Auto-racing inspired air vent chassis with 30-Series foam for comfort and airflow. Propriety stainless steel alloy rails deliver durable, long-lasting support.

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