Specifications

A.Troubleshooting.
1.Rear wheel swings.
a.wheel rim is distorted.
b.wheel is abnormal.
c.improperly assemble the wheel axle.
2.Rear damper is too soft
a.rear damper spring fatigue.
3.Bad braking
a.the adjustment of brake is not good.
b.the brake lining is dirty.
c.the brake lining is worn out.
d.the cam of brake lining is worn out
e.the brake cam lever is worn out.
f.the brake hub is worn out.
g.the assembling of brake lever gear trough is not good.
B.Data
Item Standard value(mm) Limit of use(mm)
The swings of rear wheel - 2.0
Brake hub inner diameter 110 111.0
Thickness of brake lining 4.0 2.0