WD-40 Specialist® Bike Chain Lube is an all-conditions lubricant that protects bicycle chains in dry, wet, or varying conditions. The fast and easy-to-use aerosol spray helps prevent squeaks and extends the life of the chain. Its special formula does not contain wax, which leaves a sticky residue that can build up inside chain links and the drivetrain. Contains corrosion-inhibitors for optimal chain protection.