Patent ID: 8336682

Claim:
A vehicle brake disk for attachment to a wheel of a vehicle, comprising: an outer friction member having a first thickness in cross-section and configured to face away from the vehicle when attached to the wheel of the vehicle; an inner friction member having a second thickness in cross-section that is thicker than the first thickness in cross-section of the outer friction member along substantially an entire radial length of the inner friction member, the inner friction member configured to face towards the vehicle when attached to the wheel of the vehicle; a plurality of vanes connecting the outer friction member to the inner friction member; a connection cylinder portion extending from the outer friction member; and a hub member extending from the connection cylinder portion and configured for connection to the wheel of the vehicle, wherein the first thickness in cross-section is measured in a direction parallel with a direction extending perpendicularly away from the wheel of the vehicle when the disk is attached to the vehicle, the first thickness in cross-section is substantially uniform in the radial direction and the first thickness is substantially uniform in a circumferential direction along a substantial, continuous portion, and the second thickness in cross-section is measured in a direction parallel with a direction extending perpendicularly away from the wheel of the vehicle when the disk is attached to the vehicle, the second thickness in cross-section is substantially uniform in the radial direction and the second thickness is substantially uniform in a circumferential direction along a substantial, continuous portion, wherein the connection cylinder portion is integrally formed with the outer friction member, and the outer friction member is located between the connection cylinder portion and the inner friction member.