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         Adjusting the height of the seat

In order to adjust the height of the seat you’ll have to unlock the lever that can be seen in the picture 
below, adjust the saddle height to the desired position without exceeding the mark carved onto the 
saddle’s tube. Lock the lever in place and you’re done.

The saddle’s height must be set so that you can place your feet at the ground comfortably. 

                      Cleaning and Maintenance

Regular maintenance guarantees you a longer durability and road worthy state of your bike. 
Maintenance includes cleaning, lubricating and ride setting adjustments. Regular maintenance work 
is required  to sustain a warranty claim. This applies to special corrosion (surface rust) and other 
damages, which by non-observance, would not be undertaken by us. Thus, please read through the 
following section thoroughly. 

General Maintenance Remarks

Frequency 

Component 

Lubricant 

How to Lubricate 

 
 
Weekly 

Chain 
Derailleur Pulleys 
Derailleurs 
Brake Calipers 
Brake Levers 

Chain Lube or Light Oil 
Chain Lube or Light Oil 
Oil 
Oil 
Oil 

Brush On or Squirt 
Brush On or Squirt 
Oil Can 
3 drops from oil can 
2 drops from oil can 

Monthly 

Shift Levers 

Lithium Based Grease 

Disassemble 

Every Six Months 

Freewheel 
Brake Cables 

Oil 
Lithium Based Grease 

2 squirts from oil can 
Disassemble 

 
 
Yearly 

Bottom Bracket 
Pedals 
Derailleur Cables 
Wheel Bearings 
Headset 
Seat Post 

Lithium Based Grease 
Lithium Based Grease 
Lithium Based Grease 
Lithium Based Grease 
Lithium Based Grease 
Lithium Based Grease 

Disassemble 
Disassemble 
Disassemble 
Disassemble 
Disassemble 
Disassemble 

 

Lubrication

Chain

The chain must be regularly (especially after riding in the rain) lubricated with a standard chain-caring product.
Physical stretching of the chain requires checking procedures to be carried out to ensure that the tension is 
adequate. Examine the chain tension by positioning the bike on its kickstand and test whether the chain, while 
being pushed upwards or downwards has a maximum gap of 10-15 mm in between. If this is not the case 
please proceed to the following steps: 

!) Loosen the axle nuts on both sides of the wheel and the brake counter - bracket (for the back pedalling 
brake) on the left side of the rear - end stay. When a gearbox removal is required please see the 
manufacturer’s instruction manual
.
2) Subsequently, adjust the chain’s tension by turning the tension screw nuts on both the left and the right 
sides.

3)Before tightening of the axle nuts, check whether the wheel stands in the centre and adjust if needed.

4) Tightly screw the axle nuts and the tension screw nuts. (Tightening Torgue not less than 30N-M)

5) Recheck the chain tension
                                  

An over-tightened chain can cause pops during riding.

Summary of Contents for City Zoom

Page 1: ... advice THIS MANUAL SHOULD BE READ BEFORE OPERATINGTHE BICYCLE Saddle Post Saddle Front bag Mudguard Derailleur Pedal Handle Bars Fork Crank Chain Rim Motor www bicycles4u com Handle Bars Saddle Derailleur Crank Saddle Post Chain Pedal Mudguard Rim Battery Fork Frame Handle Bars Stem Handle Bars Stem ...

Page 2: ... and mileage of the unit will be varied depending on the battery condition temperature terrain wind speed tyre pressure rider weight and the maintenance etc To get the best mileage we propose that 1 Ride for 3 5m in power mode when starting 2 Try to reduce frequent braking or restarts 3 Ride in PAS mode while on uneven road conditions uphill or headwind 4 Avoid carrying people or overloading 5 Che...

Page 3: ...will have a top speed of 25km h 6 To turn the power off close the power switch No battery indicator lights should be on How to Remove the Battery 1 2 Remove the battery from the frame 1 Push the battery into the frame 2 Use the key to lock the battery Unlock the battery using the key How to Replace the Battery 1 Use the power switch which is located on the side of the battery to turn the power ON ...

Page 4: ...prevent shocks or shorting Only use the charger provided to charge the battery Do not disassemble or modify the battery Do not expose the battery to fire or extreme temperatures Do not allow impact or force against the battery pack Pull out the power plug first and then the charger plug after charging Connecting the power plug and the power source for a long time while not charging is not recommen...

Page 5: ...taneously 5 Finished Steps to fold the bike Steps to unfold the bike Turn the power ON Use the power switch to turn the power on The remaining battery power is displayed on the panel after turning the power on Power cut during braking To ensure the rider s safety the motor will stop working when braking and restart after the brake lever is released Riding Test each of the functions before riding t...

Page 6: ...lure Have a professional fix or replace it Poor tyre pressure Pump up the tyre to its correct pressure Poor travelling range after each charging Insufficient charge Fully charge the battery Battery aging Replace with a new battery case Poor road conditions slopes headwinds and frequent use of the brakes Change the power mode Battery failure Replace battery Abnormal long charging time Battery aging...

Page 7: ...se 2 squirts from oil can Disassemble Yearly Bottom Bracket Pedals Derailleur Cables Wheel Bearings Headset Seat Post Lithium Based Grease Lithium Based Grease Lithium Based Grease Lithium Based Grease Lithium Based Grease Lithium Based Grease Disassemble Disassemble Disassemble Disassemble Disassemble Disassemble Lubrication Chain The chain must be regularly especially after riding in the rain lu...

Page 8: ...s until the brake shows are centered to the rim Through tightening of the screws the spring will be prestressed and the brake shoe will move away from the rim Warranty When does the warranty not apply When the bicycle is used negligently or has damage resulting from a traffic accident Normal wear and tear Poor maintenance or modifications that no longer complies with regulations or original specif...

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