Shimano SM-RT30 Disc Brake Rotor CenterLock Mountain Bike MTB 180mm / 160mm Brake Rotors with RT30 Lock Ring Resin Pad Only - Price history & Review | AliExpress Seller - HXH Bike
1 Piece Sm Rt30 180mm Center Lock Bicycle Disc Brake Rotor Sm-rt30-m 180mm - Bicycle Brake - AliExpress
Shimano Brake Disc SM-RT 30 S M Ø 160 7 3/32in CL Centre Lock Deore Disc Rotor | eBay