Gold (HH): super high friction, high heat (longer lasting) sintered bronze metallic compound with diamond ground surface for wet/extreme conditions (due to high heat generation, HH
Gold compound is not for Hydraulic/DH race use unless OE specified)
Red (R): high friction, low heat (faster wearing) Aramid based, semi
metallic soft compound for DH racing
Green: med high friction (medium wearing) Aramid based, organic compound for XC/all
purpose (no squeal)