As I'm transitioning into running more as the weather gets colder, I'm wanting to clean up my bike for winter storage. The drivetrain has loads of that sticky black gunk on it, and my brother's taken the chain cleaner with him to college. I've used turpenoid often enough to remove that grease from my hands... would it be safe to use some soaked into a rag to clean off the bicycle components? Or is it corrosive/harmful?