Amazon.co.jp: Shimano BL-MT200 BR-MT200 Lightweight High Performance Hydraulic Disc Brakes, Front and Rear Set, Black, 6.3 inch (160 mm) Rotor Included : Sports & Outdoors
Amazon.co.jp: Shimano EBRUR300F6RXL ALTUS BR-UR300 Disc Brake, Front Use, Resin Pad (B01S) Flat Mount, Hydro Rick : Sports & Outdoors