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ISM Seat PN 4.0 Saddle
ISM Seat PN 4.0 Saddle ISM Seat PN 4.0 Saddle
ISM Seat PN 4.0 Saddle ISM Seat PN 4.0 Saddle
ISM Seat PN 4.0 Saddle ISM Seat PN 4.0 Saddle
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ISM Seat PN 4.0 Saddle 5
ISM Seat PN 4.0 Saddle 3
ISM Seat PN 4.0 Saddle 2
ISM Seat PN 4.0 Saddle 1

ISM Seat PN 4.0 Saddle

Pricing and Order Section

Mfg PartNum: VL9139BLK
MSRP: $249.88
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Enjoy A Healthier Ride With More Pelvic Tilt

New for 2020, the ISM PN 4.0 is the latest offering in the Performance Narrow category of saddles.

Similar in design to the award-winning PN 3.0, ISM increased the sit bone contact points 5mm to accommodate a range of pelvic/body positions. Rider response and input led the brand to introduce a 125mm saddle to allow for more relaxed pelvis tilt optimized for road and gravel cycling.

Like the other PN saddles, the PN 4.0 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 PN 4.0 is nose-less and designed to remove pressure from soft tissue, ensuring maximum blood flow, no genital numbness, and a healthier, more enjoyable ride.


  • 5mm wider than the PN 3.0 to accommodate a greater range of sit bone width
  • Tapered-edge mold design for comfort
  • Auto-racing inspired air vent chassis
  • Commonly used for gravel bikes and time trial bikes
  • Category: Performance Narrow
  • Length: 255mm
  • Width: 125mm
  • Padding: 30-Series Foam
  • Rails: Proprietary Stainless Steel Alloy

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. Saddle rails may have minor scratches. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.


Mfg PartNum: VL9139BLK 

Length: 255 mm

Rail Material: Stainless Steel 

Width: 125 mm


Saddle Type: Cut-Away Saddles 

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