SHIMANO – CENTER LOCK – Disc Brake Rotor – 180 mm SHIMANO SM-RT54 disc brake rotors provide exceptional stopping power in all riding conditions. SHIMANO’s CENTER LOCK mounting system makes installing and removing rotors quick and easy thanks to the spine mount and lock ring design. FEATURES CENTER LOCK for quicker installation About 10% lighter than SM-RT53 Designed for resin pad only 160 mm, 180 mm
