- The ISM PN4.1 is the newest offering in the Performance Narrow category of saddle and features the same shape as the popular PN4.0, only with increased padding
- PN4.1 offers superb thigh and hamstring clearance which allows for more rider body movement around the seat and is great for diving into fast corners
- 125mm wide to accommodate a greater range of sit bone width
- Features ISM 40-series foam padding for a balance of performance and comfort
- Tapered-edge mold design for incredible comfort
- Auto-racing inspired air vent chassis
