Wilwood Rotor-GT48 SPC-37-LH 13.06 x 1.38 - 8 on 7.00in

What you get here is a single Wilwood GT 48 Spec-37 two-piece brake rotor. It measures 13.06 inches in diameter and is 1.38 inches thick, with an 8 on 7.00-inch bolt circle pattern. This rotor is built for serious braking, especially in demanding conditions like short tracks and road courses where heat is a major factor.

Wilwood developed a special iron alloy for these rotors, drawing from technology used in military-spec rotors. This alloy is made to handle extreme temperatures really well, resisting distortion, warping, cracking, and wear better than standard cast iron. The GT Series asymmetrical face slot pattern helps clear out dust and gas, and each rotor is dynamically balanced to ensure smooth operation without vibrations, even at high speeds. This combination means you get a rotor that can take a beating and keep performing, offering a long service life under tough use.