| VELOSTER(FS) >2013 > G 1.6 T-GDI > Brake System > General Information>Specifications |

Specifications
Item | Specification
Master cylinder | Type | Tandem
Cylinder I.D. | 22.22 mm (0.875 in)
Piston stroke | 45 ± 1 mm (1.77 ± 0.039 in)
Fluid level switch | Provided
Brake booster | Type | Single
Boosting ratio | 8 : 1
Front Disc brake | Type | Ventilated disc
Disc O.D. | Ø 280 mm (11.02 in)
Disc thickness | 23 mm (0.91 in)
Caliper piston | Single
Cylinder I.D. | Ø 57.2mm (2.25 in)
Rear Disc brake | Type | Solid disc
Disc O.D. | 262 mm (10.31 in)
Disc thickness | 10 mm (0.39 in)
Caliper piston | Single
Cylinder I.D. | Ø 34 mm (1.34 in)
Parking brake | Type | BIR (Ball-in-Ramp)
actuation | Lever
O.D.: Outer Diameter I.D: Inner Diameter
Specification (ESC)
Part | Item | Standard value | Remark
HECU | System | 4 Channel 4 Sensor (Solenoid) | Total control
Type | Motor, valve relay integrated type | (ABS, EBD, TCS, ESC)
Operating Voltage | 10 ~ 16 V |
Operating Temperature | -40 ~ 120 °C (-40 ~ 248°F) |
Motor power | 270 W |
Active Wheel speed sensor | Supply voltage | DC 4.5 ~ 20 V |
Output current low | 5.9 ~ 8.4 mA |
Output current high | 11.8~ 16.8 mA |
Output range | 1 ~ 2,500 Hz |
Tone wheel | Front : 46 teeth, Rear : 47 teeth |
Air gap | 0.4 ~ 1.5 mm |
Yaw rate& Lateral G sensor (CAN TYPE) | Operating Voltage | 10 ~ 16 V |
Current Consumption | Max. 140 mA |
Yaw rate sensor measurement range | -75 ~ +75 °/sec |
Lateral G sensor measurement range | -14.715 ~ 14.715 m/s² |
Service Standard
Items | Standard value
Brake pedal height | 191.61 mm (7.54 in)
Brake pedal Full stroke | 135 mm (5.31 in)
Stop lamp switch clearance | 1.0 ~ 2.0 mm (0.04 ~ 0.08 in)
Brake pedal free play | 1.8 ~ 4.2 mm (0.07 ~ 0.17 in)
Front brake disc thickness | 23 mm (0.91 in)
Front brake disc pad thickness | 10.5 mm (0.41 in)
Rear brake disc thickness | 10 mm (0.39 in)
Rear brake disc pad thickness | 10 mm (0.39 in)
Tightening Torques
Items | N.m | kgf.m | lb-ft
Hub nut | 88.3 ~ 107.9 | 9.0 ~ 11.0 | 65.1 ~ 79.6
Master cylinder to brake booster | 9.8 ~ 15.7 | 1.0 ~ 1.6 | 7.2 ~ 11.6
Brake booster mounting nuts | 18.6 ~ 23.5 | 1.9 ~ 2.4 | 13.7 ~ 17.4
Air bleeding screw | 6.9 ~ 12.7 | 0.7 ~ 1.3 | 5.1 ~ 9.4
Brake tube flare nuts | 12.7 ~ 16.7 | 1.3 ~ 1.7 | 9.4 ~ 12.3
Front caliper guide rod bolts | 21.6 ~ 31.4 | 2.2 ~ 3.2 | 15.9 ~ 23.1
Rear caliper guide rod bolts | 21.6 ~ 31.4 | 2.2 ~ 3.2 | 15.9 ~ 23.1
Front caliper assembly to knuckle | 78.5 ~ 98.1 | 8.0 ~ 10.0 | 57.9 ~ 72.3
Rear caliper assembly to knuckle | 63.7 ~ 73.5 | 6.5 ~ 7.5 | 47.0 ~ 54.2
Brake hose to caliper | 24.5 ~ 29.4 | 2.5 ~ 3.0 | 18.1 ~ 21.7
Brake pedal member bracket bolts | 18.6 ~ 23.5 | 1.9 ~ 2.4 | 13.7 ~ 17.4
Brake pedal shaft nut | 29.4 ~ 34.3 | 3.0 ~ 3.5 | 21.7 ~ 25.3
Front wheel speed sensor mounting bolt | 7.8 ~ 11.8 | 0.8 ~ 1.2 | 5.7 ~ 8.7
Rear wheel speed sensor mounting bolt | 6.9 ~ 10.8 | 0.7 ~ 1.1 | 5.0 ~ 8.0
HECU bracket mounting nut | 16.7 ~ 25.5 | 1.7 ~ 2.6 | 12.3 ~ 18.8
Lubricants
Items | Recommended | Quantity
Brake fluid | DOT 3 or DOT 4 | As required
Brake pedal bushing and bolt | Chassis grease | As required
Parking brake shoe and backing plate contacting surface | Heat resistance grease | As required
Front caliper guide rod and boot | AI-11P | 0.8 ~ 2.0 g
Rear caliper guide rod and boot | AI-11P | 0.8 ~ 2.0 g