SKU: 37637780583

ISM PN 4.1 L-255 W-125 Cr-Mo Rail

Sale price$98.35 Regular price$109.28
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 27 - Sep 1

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Description

ISM PN 4.1 L-255 W-125 Cr-Mo RailNEW 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

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.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 37637780583

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MBR
Chelsea, US
★★★★★ 5
Great quality
Color: Rustic Brwon, Size: 16in
Hassle but they work great. I love the color, the thickness and quality. They do have some weight but in my opinion, I prefer that. Right now the four shelves are holding up my WiFi routers and remotes. Will buy again
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Reviewed in the United States on May 4, 2026
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Maxisss
Port Orchard, US
★★★★★ 5
Good quality shelves
Color: Walnut, Size: 24in, Color: Walnut, Size: 24in
These shelves are gorgeous in person. Yes, they're darker than the listing pics, but I actually prefer it. The grain is beautiful, they came well-packed, and mounting them was no trouble at all. Now I've got display space that feels both stylish and practical. Definitely worth it!
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Reviewed in the United States on February 9, 2026
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Laoneil1004@gmail
Cuba, US
★★★★★ 5
AWESOME
Color: Rustic Brwon, Size: 16in
EASY INSTALL, I WILL BUY MANY MORE
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Reviewed in the United States on May 7, 2026
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Louis G
Massapequa, US
★★★★★ 5
Easy to install, very tough!
Color: White, Size: 16in, Color: White, Size: 16in
Seriously, scoring these shelf stands for $30 feels like an absolute steal! Four chunky wood boards with metal T-brackets that actually feel substantial - way sturdier than those flimsy IKEA ones I used to have. My old cheapo stands warped after half a year, but these hold up like a champ - I've got like 15 heavy textbooks stacked on them right now. Love the little details too: rounded edges so you won't scrape your hands, and rubber grip strips on the bottom. They look legit fancy in my living room as bookshelves and even class up my kitchen herb garden. My friend thought they were some high-end designer furniture! Honestly, the craftsmanship at this price puts my old $60 wooden shelves to shame. Already told my DIY group chat about these - trust me, you can't go wrong!
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Reviewed in the United States on March 13, 2025
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Chad Collins
Alexandria, US
★★★★★ 4
Great look. Sturdy.
Color: Rustic Brwon, Size: 16in
Great look if you can get it installed. The sticker paper mounting guides rip so easy so he careful!
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Reviewed in the United States on October 4, 2025

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