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12. REAR BRAKE/REAR FORK/REAR
WHEEL/REAR SHOCK ABSORBER QUANNON 125
SERVICE INFORMATION
GENERAL INSTRUCTIONS
· When performing the services stated in this section, the engine and exhaust muffler must be cold
to avoid scalding.
· During servicing, keep oil or grease off the brake pads and brake disk.
SPECIFICATIONS
Item Standard (mm) Service Limit (mm)
Rear wheel rim runout 2.0
Rear brake disk thickness 4.0 3.0
Rear brake disk runout 0.30
TORQUE VALUES
Rear fork pivot nut 5.57.0 kg-m
Rear axle nut 8.010.0 kg-m
Rear shock absorber lower mount bolt 3.04.0 kg-m
Rear shock absorber upper mount bolt 3.04.0 kg-m
Rear brake caliper holder bolt 2.43.0 kg-m
TROUBLESHOOTING
Rear wheel wobbling Poor brake performance
· Bent rim · Air in brake system
· Faulty tire · Deteriorated brake fluid
· Axle not tightened properly · Contaminated brake pad surface
· Worn brake pads
Soft rear shock absorber · Clogged brake fluid line
· Weak shock absorber spring · Deformed brake disk
· Damper oil leaks · Unevenly worn brake caliper
Rear wheel noise
· Worn rear wheel axle bearings
· Worn rear fork bearings
· Deformed rear fork
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