The Wilwood HD 48 Spec-37 curved vane rotor delivers high thermal resistance and long-term durability thanks to a proprietary iron alloy formulated to resist distortion, warping, cracking and wear. HD Series finishing includes detailed machining and smooth pad contact faces without slots to provide consistent pad engagement and reliable stopping performance under heavy use.
Wilwood Rotor-HD48 SPC-37-RH 12.88 x 1.25 - 12 on 8.75in