Hawk DTC-30 Front Race Brake Pads for Mazda RX-7 Four-Piston Brakes - HB155W.580

Hawk DTC-30 front brake pads, HB155W.580, nominal .580 inch thickness.

For selected 1986-1989 and 1991 FC Mazda RX-7 applications with the original four-piston fixed front calipers. Confirm the exact year, trim, suspension package and installed brakes.

Original brake requirements: FC applications require the four-piston caliper with 36.12 mm pistons and approximately 10.9-inch diameter x 22 mm ventilated iron rotors. This is the factory five-lug/performance, firm-ride or automatic-adjusting suspension brake package as applicable. Coverage for this exact part is limited to the identified current manufacturer applications; later years and FD fitment require separate confirmation.

Hardware and limits: Preserve the correct inner/outer pads, retaining pins, springs and guard plates. Excludes the factory 14-inch-wheel/single-piston front brakes, later/import 314 mm upgrades and unverified conversions. Current wheel diameter or trim name alone does not establish brake fitment. Unconfirmed year/trim entries require exact-part confirmation from Hawk.

GTU fitment check: Existing GTU application retained pending exact installed-brake verification. HB155 .580 requires matching four-piston fixed front calipers, backing plates, retaining pins and springs, and compatible iron rotors. The GTU trim label and rotor diameter alone do not establish this package. Does not fit single-piston front calipers. Manufacturer and year/package sources conflict; no specific conversion kit has been verified.

DTC-30 Compound

Medium-torque race compound with progressive response and strong modulation.

• Application-specific brake pad set
• Hawk part number: HB155W.580