Super-Slick Black Grease is engineered to dramatically reduce friction and wear in extreme environments. Originally designed for racing peddle bikes. (Tour de France) The grease has been tested for 10,000 miles showing no part wear. The test showed the grease did not change in temps over 100 degrees below zero. UltraBlack SS has had great success in special purpose weapons. On shotgun hinges in makes the movement smother and free and in heavy used semi–auto weapons the barrels still wear, but do last longer. When doing peddle bike cranks, disassemble heat parts with Microlon Products metal treatment, then coat with our UltraBlack SS Super-Slick