Designed to leave zero residue after application Finish Line's Bicycle Disc Brake Cleaner displaces any moisture built up on the pad or rotor resulting in improved and predictable braking and reduced brake squeal. With the unique characteristic of being acetone free Finish Line's Bicycle Disc Brake Cleaner is strong enough to clean the dirtiest rotors yet safe enough to use around paint carbon fiber and plastic parts.Engineered to rapidly clean disc brake rotors and padsAcetone-free formula