15. Brake System
15-3
Maintenance Description
Operational precautions
Caution
z The brake calliper can be removed without removing the hydraulic system.
z After the hydraulic system is removed, or the brake system is felt to be too soft, bleed the
hydraulic system.
z While refilling brake fluid, care should be taken not to let the foreign material entering into the
brake system.
z Do not spill brake fluid on the painted surfaces, plastic or rubber parts to avoid damage.
z Check the operation of the brake system before riding.
Specifications
Item Standard (mm) Limit (mm)
The thickness of front and rear brake disc
4.000 2.500
Front and rear brake disc eccentricity < 0.100 0.300
Master cylinder inner diameter 11.000 - 11.043 11.055
Master cylinder outer diameter 10.957 - 10.984 10.945
Diameter of front disc 273.000 -
Diameter of rear brake drum 200.000 -
Thickness of front brake lining 5.100 2.000
Thickness of rear brake lining 5.100 2.000
Torque values
Brake hose bolt ： 3.5 kg-m
Bolt for brake caliper : 3.3 kg-m
Bolts for the lining guide pin ： 1.8 kg-m
Bolts for the lining guide pin cap ： 1.0 kg-m
Air-bleed valve ： 0.55 kg-m
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.
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