Operating brake Foot operated, hydraulic-mechanicalboost · Dual-circuitbrake system, 4-piston AI mo

911 Carrera (996) Entire vehicle -General 0 Brakes Operating brake Foot operated, hydraulic-mechanicalboost Dual-circuitbrake system, 4-piston AI monobloc brake callipers at FA and RA,distributed per axle, internallyventilated brake discs at front and rear axles. Vacuum brake booster (boost factor) 3.15 Brake master cylinder 0' mm (in) 25.4 (1.0) Brake master cylinder stroke mm (in) 18/18 (0.71/0.71) Pressure reducer -switching-on pressure 55 bar -reducing factor 0.46 Brakedisc ~ mm (in) Front 318 (12.53) Rear 299 (11.78) Effectivebrakedisc ~ mm (in) Front 267.8 (10.55) Rear 271.2 (10.69) Brakedisc thickness mm {in} Front 28 (1.10) Rear 24 (0.95) Effective total brake area per wheel cm2 (sq. in) Front 157 (24.34) Rear 127 (19.69) Piston 0' in brake calliper mm (in) Front 44 (1.73) and 34 (1.34) Rear 30 (l.18) and 28 (1.10) Parkingbrake Drum-typeparkingbrake Brake drum ~ mm (in) 180 (7.092) Brake shoe width mm (in) 25 (0.985) 0 Technical data -GT3 0 -61 Printed in Germany -37, 1999 996O_53