S1 Kits Ultimax 2 and RK Rotors. S1 Kits Ultimax 2 and RK Rotors; Rear; FMSI Pad No. D1033; Solid; 5 Bolt Holes; 270mm Dia.; 45.2mm Height; 14mm Thick; 65.7mm Center Hole Dia.;. Save 15% over cost of buying separate parts with this quality pad and rotor kit which includes pads rotors and caliper lube.