Just curious what everybody's using. I use a CRF450 front caliper on the rear. I also use a CRF450 rear master cylinder. It's got the integrated reservoir. Looks trick. I have a Cannondale front master cylinder. I kept the little parking brake button. I still have the stock Raptor front calipers. I want to upgrade to YFZ dual piston calipers later on. I have a Braking 250R rotor on on the rear, and 4mm oversize rotors on the front. Don't know what brand they are, but they are custom made for the T-pin front end. Mark Laeger had some company in Europe make them for me.