Ergon ST Core Evo

The twin shell design acts like a suspension system for your pelvis. Because the upper shell floats on the BASF Infinergy core, it absorbs road chatter and bumps much more effectively than a standard, rigid saddle base.

It is designed for both. The dynamic adaptation to pelvic motion makes it particularly comfortable for long rides where you might otherwise experience fatigue or soreness from a static saddle.

Infinergy is an expanded thermoplastic polyurethane that offers high rebound and durability. Unlike standard foam that can compress and stay flat over time, this material provides consistent support and shock absorption that returns to its shape after every pedal stroke.

Yes, the cutout is specifically engineered to reduce pressure on sensitive soft tissue areas. By removing material in the center, it allows for better blood flow and prevents numbness during extended time in the saddle.

This version features a relief channel and saddle shape specifically contoured to match female pelvic anatomy. It provides support where needed while relieving pressure in areas where women typically experience discomfort.