(D)Handle bar, front wheel, front brake and front fork:
A. Troubleshooting
1.steering handlebar is abnormal, too tight.
a.steering mechanism; washer of conical bush locked too tightly.
b.steering mechanism; steel ball is cracked.
c.steering mechanism; steel ball base and washer of conical base is damaged.
d. wheel pressure is too low.
2.steering handlebar is aslant.
a. left and right damper are not even.
b.Front fork is crooked.
c. The axle of front fork is crooked or the wheel is aslant.
3.front wheel swings.
a.wheel rim is distorted.
b.bearing of front axle is loose.
c.wheel spoke is distorted.
d.Tire worn out.
e. The wheel axle is improperly assembled.
4.front damper is too soft, or spring fatigue.
5.Noise in front damper.
a.noise comes form the shock absorber tube.
b.locking screw of damper is loose.
B. Data
Item Model
Standard value(mm) Limit of use.(mm)
thickness of frt pad M2-50
5.3 3.3
thickness of frt pad M2-125/150/200/250
8.3 5.3
Disk of frt brake M2-50
3.5 3.0
Disk of frt brake M2-125/150/200/250
4.0 3.5
thickness of REAR pad M2-125/150/200/250
10.0 7.0
Swingness of frt/rr
wheel
M2-50/125/150/200/250
- 2.0
The lining of rr Brake M2-50
4.0 2.0
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