15. FRONT BRAKE & FRONT WHEEL
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Maintenance Description
Operational precautions
Caution
Inhaling asbestos may cause disorders of respiration system or cancer, therefore, never use air hose or
dry brush to clean brake parts. Use vacuum cleaner or other authorized tool instead.
Do not remove brake caliper before removing the hydraulic system.
After the hydraulic system is removed, or the brake system is felt to be too weak, bleed out the air from
the hydraulic system.
While refilling brake fluid, do not let the foreign material enter into the brake system.
Do not spill brake fluid on the painted surfaces, plastic or rubber parts to avoid damage.
Check the operation of the brake system before riding.
Please refer to the Maintenance Manual of tubeless tire in respect to the removal, repair and
installation of the tire.
Specifications
Item Standard (mm) Limit (mm)
The thickness of front and rear brake disk
3.500 2.000
Front and rear brake disk eccentricity < 0.100 0.300
Master cylinder inner diameter 14.000~14.043 14.055
Master cylinder piston outer diameter 13.957~13.984 13.945
Diameter of front /rear disk 175.000/220.000 -
Thickness of front brake lining 5.500 2.000
Tire pressure as cold: 0.8
kg/cm² (12 psi)
Torque values
Brake hose bolts 3.50kgf-m
Bolt for brake caliper 3.25kgf-m
Bolts for the brake disk 4.25kgf-m
Brake lever nut 1.00kgf-m
Air-bleed valve 0.50kgf-m
Front wheel nut 2.40kgf-m
Front axle castle nut 5.00kgf-m
15-2
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