THE Forester GT has ventilated discs - 277mm in diameter - on the front and solid discs - 266mm - on the rear, as well as an anti-lock braking system (ABS) fitted as standard. The ABS used in the Forester GT, as with all Subaru all-wheel drive ABS systems, is a four-channel, four-sensor, three-phase system. Each wheel has a speed sensor that transmits information to a computer, which then operates the activation of the three-phase cycle used to control braking force.