ISM
ISM PN 4.1 Black L-255 / W-125 Chromoly Rails
ISM PN 4.1 Black L-255 / W-125 Chromoly Rails
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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
Shipping
Click & Collect – Free
Order online & collect at our Onehunga store.
NZ Shipping Costs
- General Items: $10/item
- Bikes & Frames: $120 (North Island) / $199 (South Island)
- Large/Bulky Items: $30 (North Island) / $60 (South Island)
- Helmets: $20 (North Island) / $25 (South Island)
Rural: Extra fee applies — select “Rural Delivery” at checkout.
International Orders – Contact info@rouleurcycles.co.nz for a quote.
Bike Shipping
- Fully assembled, tuned & safety‑checked before dispatch.
- Carefully boxed (minimal reassembly required).
- Recommend mechanic check before first ride.
Timeframes
- General: 3–5 working days (+1–2 for rural)
- Bikes: 5–7 working days (up to 10 remote) + prep time for build/boxing
- Delays may occur during holidays or courier disruptions.
Tracking & Issues
- Tracking emailed once dispatched.
- Contact the courier first for delays. Need help? Email or call us.
- Report damaged/lost parcels within 3 days.
No PO Boxes – Physical addresses only.
Why Buy From Rouleur?
Why Buy From Rouleur?
Trusted NZ Bike Experts – Locally owned & operated with years of experience helping Kiwi riders get the most out of their bikes.
Custom Builds & Personal Fitting – From road to e‑bikes, we tailor every build to your riding style and goals.
Fast, Reliable Shipping – In‑store stock ships next business day. Supplier stock delivered in as little as 3–5 days.
After‑Sales Support That Rides With You – From servicing to upgrades, our workshop team is here for the long haul.
