FRONT BRAKE


  1. OUTLINE


    1. A ventilated disc brake is used.

    2. An opposed 4-piston caliper is used.

    3. 2-piece disc rotor is used on models with the OS12WS type brake caliper.

    4. Orange brake calipers that have a brand name logo are provided as an option on some models.

  2. Brake Type* Ventilated Disc Ventilated Disc (With 2-piece Disc Rotor)
    Caliper Type* OS12WC OS12WS
    Wheel Cylinder Diameter 42.85 mm (1.69 in.) x 2 ←
    Rotor Size (Diameter x Thickness)* 334.0 mm x 30.0 mm (13.1 in. x 1.18 in.) 356.0 mm x 30.0 mm (14.0 in. x 1.18 in.)

    *: Front brake specifications differ by destination package provision.

    SPECIFICATION

  3. MAIN FEATURES


    1. 2-piece Disc Rotor


      1. The hat portion and the rubbing portion have been connected by a pin, spring and washer to suppress both the increase of air volume toward the spiral fin and the rotor deformation caused by heat, thus achieving superior fading performance.

      2. A hat portion made of aluminum is used to achieve weight reduction.

        B002AXEE02
        Text in Illustration
        *1 Rubbing Portion *2 Hat Portion
        *3 Spiral Fin *4 Spring
        *5 Pin *6 Washer
        *a A - A Cross Section - -
        B002AXL Small Heat Deformation B002B2P Increase in Air Volume

  4. PRECAUTION


    1. The 2-piece disc rotor cannot be disassembled.

    2. If the 2-piece disc rotor is equipped with a steel wheel, the hat portion may sag, causing the wheel nut to loosen. An aluminum wheel must be equipped.