Rock N Roll Rocks
Rock N Roll lube is hands down my favorite chain lube for both my mountain and road bikes. Drivetrain is dead quiet, fast and it lasts. Good in all weather. I've tried everything else and this is the best I've ever used. I've tried the blue (thick) gold (medium) and red (dry) Rock N Roll lubes and the Gold one is the best all purpose viscosity. This is the best stuff out there.