What Our Gearhead(R) Experts Are Saying: "I use CL-1. 2 year-round because it's super versatile-quiet in dry dust and still holds up when I get caught in rain. It's the easiest way to keep a drivetrain running smooth without the grime buildup." When we're logging miles in every condition imaginable, the Park Tool CL-1. 2 Chain Lube is our go-to for quiet, efficient pedaling. This all-conditions formula seeps deep into chain links to reduce friction, repel water, and extend the life of every drivetrain component. Formulated with a proprietary blend of oils, CL-1. 2 penetrates smoothly and leaves behind a thin protective film that resists rust and corrosion. Whether we're riding dusty desert trails or wet city commutes, it keeps shifting crisp and the drivetrain whisper-quiet. It's more than just chain lube-it's reliable performance in a bottle.