NEW Shimano GRX SM-RT64-M Disc Brake Rotor with External Lockring - 180mm, Center Lock, Silver shifter_12speed Fits wide range of wheel

Fits wide range of wheel sizes

Two full-length

Seat Collar to Center of Rails —180 mm

Real World Foundation Aero Technology

Safe for use on carbon fiber parts

NEW Shimano GRX SM-RT64-M Disc Brake Rotor with External Lockring - 180mm, Center Lock, Silver shifter_12speed Fits wide range of wheelThe Shimano GRX SM RT64 disc rotor delivers powerful and consistent braking performance in all riding conditions. The Center Lock mounting system makes installing and removing rotors quick and easy, thanks to the spine mount and lock ring design. Compatible with both resin or metal pads Includes external type rotor lockring Rotor Size (mm): 180 Hub Disc Compatibility: Center Lock Disc Pad Compatibility: All Pad Compounds Rotor Type: Two Piece