ISM PR 4.0 Performance Saddle

Endurance riding shouldn't mean compromising on comfort. The redesigned ISM PR 4.0 delivers maximum pressurerelief across the perineum through its iconic nose-less split profile, ensuringfull blood flow and eliminating numbness whether you are grinding gravel,tackling century rides, or racking up indoor training miles. 

Engineered with a wider 150mm rear platformand high-density 60-Series foam-and-gel padding, this saddle transfers support directly to your sit bones without causing inner-thigh friction. Thefull-length center relief channel extends entirely through the rear, allowing you to maintain an aggressive, efficient body angle effortlessly for hours onend.

FEATURES

Noseless Pressure-Relief Geometry

Removes soft-tissue pressure entirely tomaximize blood flow and eliminate nerve numbness.

60-Series Foam & Gel Matrix

Delivers high-grade plush damping thatabsorbs high-frequency trail and road vibration.

Extended Full-Length Center Relief Channel

Prevents center contact through every phaseof the pedal stroke.

150mm Comfort Profile

Provides an extra-wide rear base to supportsit bones during upright endurance positions.

PRODUCT POSITIONING

Premium high-comfort performance saddle engineered for long-distance endurance, gravel grinding, and indoor training.

TARGET AUDIENCE

Century ride endurance cyclists

Gravel grinders seeking high vibrationdamping

Commuters demanding maximum daily comfort

Indoor bike training enthusiasts

Riders experiencing perineal numbness orsit-bone soreness

SPECIFICATIONS

Category: Performance Recreation

Length: 250mm

Width: 150mm

Padding: 60-Series Foam and Gel

Rails: Satin Steel