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5. 

Maintenance and adjustments

5.1 Do not attempt to open the casing of the battery, motor, or regulator or all warran-

tees will become void. If you experience a problem contact our service department.

5.2 Wheel spokes should be adjusted after 6 months. Handlebar and saddle tubes 

should never be on the nuts positioning the handlebar, handlebar vertical tube, bicy-

cle saddle, saddle tube and front wheels is 18NM. The minimum torque on the nuts 

on the pedal bearing axle and rear wheel is 30NM.

5.3 If the chain becomes loose or frequently comes off the front cog, you can easily 

adjust the chain tension by loosening the rear axle nuts slightly, and adjusting the 

tension bolts. Make sure that the chain runs freely and re tighten the axle nuts.

5.4 The brake leavers should lock the wheels when compressed half way between 

their open position and touching the handlebars. When the need adjusting use the 

following methods: 

Front brake: Loosen the nuts the cable clamp, then tension or release the steel cable, 

until the gap between the wheel and brake rubber is 1.5 to 2.0 mm.

Rear brake: Loosen the nuts on the cable clamp, then tension or release the steel 

cable until you can feel the brake lever’s motion is fl uid and does not lock the back 

wheel until it is the correct position.

Warning: Braking distances increase on wet or icy roads.

5.5 Regularly lubricate the gears and chain with light oil and the brake bushes (not 

the rubber brake shoes) with a little grease.

6. 

Introduction to Main components/parts

1.front light   

10.battery   

2.gear lever   

11.controller  

3.brake lever  

12.PAS  

4.fork 

  13.battery 

lock

5.brake cable 

14.rear derailleur

6.disc brake   

15.gears

7.quick release 

16.motor

8.seat post   

17.rear brake

9.quick release 

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