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Home >> Chevrolet >> 2008 >> Optra LT, Standard >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Hydraulic Brakes >> Specifications >> Brake System Specifications

Brake System Specifications

Application Specification
Metric English
Rear Brake Drums
  • Inside Diameter - New
200 mm 7.87 in
  • Maximum Rebore Diameter
201 mm 7.91 in
  • Radial Runout - Not Installed
0.04 mm 0.0016 in
Booster Size
  • Single
241.3 mm 9.5 in
  • Dual
177.8 and 203.2 mm 7 and 8 in
Booster Ratio 5.5:1
Caliper
  • Minimum Piston Diameter - Front
54 mm 2.126 in
  • Minimum Piston Diameter - Rear
32 mm 1.260 in
Fluid Capacity 0.5 L
Front Brake Rotors
  • Disc Type
Ventilated
  • Discard Thickness
22 mm 0.87 in
  • Lateral Runout - Installed
0.06 mm 0.002 in
  • Lateral Runout - Not Installed
0.03 mm 0.001 in
  • Rotor Diameter
256 mm 10.07 in
  • Rotor Thickness - New
24 mm 0.95 in
  • Thickness Variation
0.01 mm 0.0004 in
Master Cylinder
  • Bore Diameter - Nominal
22.22 mm 0.875 in
  • Bore Diameter - Maximum
22.29 mm 0.878 in
Rear Brake Rotors
  • Disc Type
Solid
  • Discard Thickness
8 mm 0.31 in
  • Lateral Runout - Installed
0.08 mm 0.003 in
  • Lateral Runout - Not Installed
0.05 mm 0.002 in
  • Rotor Diameter
258 mm 10.15 in
  • Rotor Thickness - New
10.4 mm 0.40 in
  • Thickness Variation
0.01 mm 0.0004 in
Wheel Cylinder Diameter
  • Maximum
20.7 mm 0.815 in
  • Nominal
20.64 mm 0.812 in