- The original synthetic chain lube formulated specifically for mountain bikes. - New formula lasts even longer and is dye-free. - Superior wear protection, efficiency and durability for extreme conditions/mileage. - Unique detergents break down and isolate dirt protecting the surfaces of your chain. This is the product that started it all back in 1989. This breakthrough lubricant revolutionized the entire chain lube market. This full synthetic lubricant is designed to handle the harshest conditions and outlast other lubes in all conditions. Syn Lube is formulated with extreme pressure additives, corrosion inhibitors, and tackifiers to provide incredible wear protection, lubrication, and staying power in extreme wet and muddy conditions. Unique polymer detergents also work to break down dirt protecting the surfaces of your chain. Go ahead, play in the mud.