The .360" thick, 11.250" diameter rotor which is blanchard ground and black oxided, is bolted to a .460" thick aluminum hub assembly with 5/16" grade 8 bolts. The hub is machined with a receiver groove to mate with the wheel adapter. Rotor only, is sold seperately without the hat.
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and reproductive harm. For more information, go to www.P65Warnings.ca.gov. All parts legal for use on pre-pollution controlled vehicles only.