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Home >> Porsche >> 2021 >> 911 Targa 4 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 57 (46 Brakes - Brake Mechanism 3.8L (Eng Code MDK.E) -- 992 - 911 CARRERA (992)) >> WM, 4600TW Grey Cast-Iron Brakes - Technical Values And Wear Limits >> Grey Cast-Iron Brakes - Technical Values And Wear Limits >> Technical Data

Technical Data

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Location Description Type Basic value Tolerance
Brake disc diameter, front   Diameter 408 mm  
Brake disc diameter, rear   Diameter 380 mm  
Brake disc thickness, front   Measured value 34 mm  
Brake disc thickness, rear   Measured value 30 mm  
Thickness tolerance of brake discs, maximum   Measured value 0.02 mm  
Effective brake disc diameter, front   Diameter 336.6 mm  
Effective brake disc diameter, rear   Diameter 311, 6 mm  
Brake pad area per wheel, front   Area 185 cm2  
Brake pad area per wheel, rear   Area 133 cm2