Upgraded vented front brake disc for Griffith and Chimaera with 500 brakes. Disc is 260mm in diameter and 24mm thick. Fits Griffith and Chimaera with 500 brakes (vented rear disc). . This applies to all Chimaera variants built after '97 including 450. For early 400 front disc see part no. TVR J0001. These discs are specifically manufactured for TVR Chimaera and Griffith and are drilled for extra cooling/degassing of the brake pads.