Scion XB Brake Rotors aren't "rotors" in the strict sense. In fact, they're actually the "disks" referred to in the description "disk brakes." In tandem with the brake calipers, they work in basically the same way as bicycle brakes. Activated by a special pressurized hydraulic fluid and usually assisted by a small motor, these calipers clamp down on either side of the rotors with considerable force.

Friction is created by the brake pads, which cover the surfaces of the rotors. Otherwise, the metal calipers would be digging into the bare metal surface of the rotor.

Periodically - about every 100,000 miles or so - you'll need to service your brake pads, because they will eventually wear out. When this is done, it's a good idea to have those Scion XB Brake Rotors professionally resurfaced by a qualified machinist, who can restore the surface by shaving off a razor-thin layer. If your rotor has somehow been damaged - cracked or warped - there is nothing that can be done, however. You'll need new ones - and we're the place to get them. Not only do we have the lowest prices on Scion XB Brake Rotors, you'll pay less for all your Scion part and accessory needs. We meet or beat any competitor's price online, so if you find it somewhere else for less, let us know about it. Better yet - when you order $50 or more worth of Scion parts and/or accessories, your shipping is FREE! Ordering is easy and convenient. Once you find the parts you need, just use our secure web form, where your private info is protected by SSL encryption.If you have questions, give us a call anytime, toll-free!