ISM Saddle PN 4.1 Black L-255 / W-125 Chromoly Rails

ISM Saddle PN 4.1 Black L-255 / W-125 Chromoly Rails

Brand: ISM

SKU: 5WERCJWM

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Product Details

Description

NEW for 2021! The ISM PN4.1 is the newest offering in the Performance Narrow category of saddles. Same shape as the popular PN4.0, only with increased padding for those looking to soften their ride. We engineered the PN4 chassis with sit bone contact points of 125mm to accommodate a range of pelvic/body positions related to road and gravel cycling.

Like the other PN saddles, the PN4.1 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 PN4.1 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:

125mm wide 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 bikes

Road Bikes

Tech Specs:

Category: Performance Narrow

Length: 255mm

Width: 125mm

Padding: 40-Series Foam

Rails: Chromoly

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 4.1 Black L-255 / W-125 Chromoly Rails

Brand

ISM

Supplier SKU

SEISM54

Year Model

2023

Frequently Asked Questions

What is the ISM PN 4.1 Saddle used for?

The ISM PN 4.1 Saddle is used on road and gravel bikes to provide nose-less, pressure-relief support, maintaining blood flow and reducing numbness for a healthier, more comfortable ride.

Why choose the ISM PN 4.1 Saddle?

Choose the ISM PN 4.1 Saddle for increased padding, 125mm width, and a tapered-edge design that combines comfort with excellent thigh clearance and cornering control.

Who is the ISM PN 4.1 Saddle designed for?

It’s designed for riders seeking pelvic-position versatility and maximal thigh clearance, especially on gravel and road setups, who want a comfortable, pressure-free ride.

Nose-less pressure relief

. The design removes pressure from soft tissue, ensuring maximum blood flow and reduced numbness. Great for long, confident rides.

125mm width for versatile sit-bone fit

. Wide enough to accommodate a range of pelvic positions for road and gravel. Supports stable, comfortable positioning across rides.

Slim, tapered-edge comfort with race-inspired airflow

. Tapered edges boost comfort while the air-vent chassis improves cooling and thigh clearance for fast corners.

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