SPEC Stage 2 features segmented or full faced pure Kevlar disc with steel backing. This lining features excellent drivability like the stage 1, but offers slightly longer life and higher torque capacity. The hub comes in either Sprung or Rigid and is application dependant. The double sprung hud features spring cover relieves for flexibility and both hubs use heat treated components for strength and durability. Best for street, drag, pulling and autocross.