OUTLINE
A ventilated disc brake is used.
An opposed 4-piston caliper is used.
2-piece disc rotors are provided on some models.
SPECIFICATION
| Rotor Type | 2-piece Disc Rotor | Except 2-piece Disc Rotor | |
| Brake Type | Ventilated Disc | Ventilated Disc | |
| Caliper Type | OS12WS | OS12WC | |
| Wheel Cylinder Diameter | mm (in.) | 42.85 (1.69) x 4 | 42.85 (1.69) x 4 |
| Rotor Size (Diameter x Thickness) | mm (in.) | 356.0 x 30.0 (14.0 x 1.18) |
334.0 x 30.0 (13.1 x 1.18) |
| Pad Material | T4146 | T4146 or PV565H | |
MAIN FEATURES
2-piece Disc Rotor
The hat and disc are connected by a pin, spring and washer to increase the volume of air flowing around the curved vanes and to suppress rotor deformation caused by high temperatures, thus achieving superior fade resistance.
A hat made of aluminum is used to achieve weight reduction.
| *1 | Friction Surface | *2 | Hat |
| *3 | Curved Vane | *4 | Spring |
| *5 | Pin | *6 | Washer |
| *a | A - A Cross Section | - | - |
|
Minimal Heat Deformation | |
Increase in Air Volume |
PRECAUTION
The 2-piece disc rotor cannot be disassembled.
If the 2-piece disc rotor is used together with a steel wheel, the disc hat may deform, causing the wheel nut to loosen. Only use aluminum wheels.