Ch. 15 FRONT BRAKE & FRONT WHEEL
15-2
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.
The brake caliper can be removed without removing the hydraulic system.
After the hydraulic system is removed, or the brake system is felt to be too soft, bleed the
hydraulic system.
While refilling brake fluid, care should be taken not to let the foreign material entering 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 brake disk 4.00 3.50
The thickness rear brake disk 5.00 4.50
Front and rear brake disk eccentricity < 0.100 0.300
Master cylinder inner diameter 14.30~14.343 14.355
Master cylinder piston outer diameter 14.257~14.284 14.245
Diameter of front disk 220mm -
Diameter of rear disk 190mm -
Thickness of brake lining 4.800 2.000
Tire pressure as cold:
10 (7) psi (on road tire)
5(3.5) psi (off road tire)
Torque
Brake hose bolts
2.3 kg-m
Bolt for brake caliper
2.8 kg-m
Bolts for the brake disk
2.3 kg-m
Brake lever nut
1.0 kg-m
Air-bleed valve
0.8 kg-m
Front wheel nut
5.0 kg-m
Front axle lock nut
10 kg-m
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