Race-tested for extreme conditionsDumonde Tech Pro X Regular Chain Lubricant blends MRCC tech with extra protection for mountain bikers and aggressive riders. A friction-reducing lube built for rugged terrain and mixed conditions. Micro Resistant Complex Compounds polymer formula with 11x the lubricity of Teflon Designed for mountain, CX, and dry dusty trails Stays quiet and clean across surfaces Bonds to chain and won&';t wash off Reduces drag while improving chain life Apply sparingly for best performance