What goes must stop. Purchase rotors for your disc brake wheels and we'll install them for you. Ultegra rotors are finally available in both 140- and 160mm sizes.
Price is per rotor.
Centerlock hub rotor shim (pack of 4)
Disc Brake Centerlock Rotor Lockring
SwissStop BXP Brake Pads (for ceramic coated rims)
6 Bolt Disc Rotor Shim