I know that they’re a factory rotor with the center bore machined out. I’m just wondering if anyone that is running Schreiner stuff knows what they’re from. I’ve spent too much time trying to figure out what they’re from with no luck. I called him and he said he’s out of the shop until October 7th. I was wanting to get new ones on before the expo, but it’s looking like I’ll just have to slap these back on for now and order new ones from him