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. Β Rider response told us some cyclists wanted a 125mm saddle to allow for more relaxed pelvis tilt related to road and gravel cycling.Β
Like the other PN saddles, the PN4.0 offers superb thigh and hamstring clearance. Β 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.
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
Specifications
| Category | Performance Narrow |
|---|---|
| Length | 255mm |
| Width | 125mm |
| Padding | 30-Series Foam |
| Rails | Proprietary Stainless Steel Alloy |
| Colours | Black |













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