Ergon SR Allroad Core Comp Saddle - SM/MD Black/GrayErgon SR Allroad Core Comp Saddle SM MD Black Gray. Ergon SR Allroad Core saddle features a BASF Infinergy core to reduce road shock and allow riders to explore country roads and backwoods gravel in comfort3D reactive damping reduces shock and vibrations Relief channel for perineal area comfort Ergonomic BASF Infinergy core absorbs road shock vibrations and reduces stress on lower back TECH SPECS Clamp Style Std Rails Color Black Gray Defined Color