G-force S21 Bike User Manual

G-force S21 Bike

Thank you for your purchase
Thank you for pu rchasingS21, this is an electric bicycle for riding without chains.

Package content

Accessories

Product Overview

Charge the bicycle

How to ride

Safety instructions

Do not try to perform dangerous actions

safety warning

1. This electric bicycle is a short-distance transportation with electric power assistance. For the sake of safety, please follow the regulations in the manual and traffic regulations that instruct the government and regulatory agencies. (Instructions or instruction manuals, catalogs, manuals and manuals, weekly, weekly, organisms, weekly).
2. At the same time, you should understand that the risk cannot be completely avoided because other people may violate traffic laws and drive carelessly, and just like when walking or riding a bicycle, you are vulnerable to road traffic accidents. On a slippery surface, it may slip, lose balance, or even cause a fall. Therefore, it is important to proceed with caution and maintain proper speed and distance, especial­ly when you are not familiar with it. This is crucial to this place.

• Respect pedestrians’ right of way. When driving, especially children, don’t scare them. When you ride from behind a pedestrian, please ring the bell to remind others, and let your scooter pass from the left (applicable to countries with vehicles) When you cross the pedestrian, you should keep the right speed at a low speed

• When you cross pedestrians, please keep the minimum speed or get off.
  Do not rent electric bicycles to people who do not understand their operation. When you rent it to your friend, you are responsible for making sure that he/ she knows its operation and wears safety equip­ment.

• Please check the scooter before each use. When it is found that the parts are loose, the battery is low, the tire is leaking, excessive wear, strange sounds, malfunctions and other abnormal conditions, please immediately stop riding and seek professional support.

Warning- fire risk-users are prohibited from servicing parts

Daily maintenance

About charging

1. When the input and output terminals of the charger are connected, the red indicator of the charger lights up to indicate normal charging.

2. Standard charging time: charge according to the specified time of the special matching charger. The ambient temperature is about 25 °C, and the charging time of the lithium battery is 3-8 hours, the green indicator light indicates that the battery is fully charged, you should immediately unplug the charger to stop charging.
   The larger the battery capacity, the longer the charging time.

3. If the battery temperature exceeds 40 ° C in summer, you need to suspend charging, and continue charging after the temperature drops. To charge in winter, the battery should be charged one hour after being built in the room. The charging time is 5-10 hours.

4. Although this charger has an overcurrent protection device, it should not be charged for a long time due to the chemical nature of the lithium battery. Otherwise, it may cause the battery performance to decay too fast, or even cause a fire .

Charging considerations

1. When charging, please put it in a safe place out of reach of children.
2. Warning, users must follow the instructions when charging, otherwise the consequences will be at your own risk.
3. Prompt that the original charger must be used.
4. Pay attention to the type and applicable voltage of the battery that the charger can charge, and it is strictly forbidden to mix.
5. When charging, it should be placed in a ventilated environment. It is strictly forbidden to charge in confined spaces or in the hot sun and high temperature environment. Do not place the charger in the saddle or the tail box for charging.
6. When charging, insert the battery first, and then connect the power supply; when sufficient, cut off the power supply first, and then pull out the battery connector.
7. When the green light is on, the power supply should be cut off in time. It is forbidden to connect the charger to the AC power supply without load for a long time without charging.
8. During the charging process, if the indicator is abnormal, there is an odor or the charger shell is overheated, the charging should be stopped immediately, and the charger should be repaired or replaced.
9. During the use and storage of the charger, pay attention to avoid the entry of foreign objects, especially to avoid the inflow of water or other liquids, so as not to cause a short circuit inside the charger. The charger should not be carried with the vehicle as much as possible. If it is really necessary, it should be placed in the tool box after shock absorption.
10. Do not disassemble or replace the components in the charger by yourself.

Check before riding

In order to ensure your driving safety, please make sure to check before riding:

1. Check whether the air in the tire is sufficient, and the tightening torque of the rear wheel nut is not less than 30Nm.
2. The tightening torque between the crossbar and the stem, the saddle and the saddle tube is not less than 19.6Nm, and the depth of insertion of the riser tube is not less than 2.5 times the diameter of the riser tube (the insertion attempt cannot exceed the safety of the stem tube or saddle tube) line).
3. Chain terms: The tightening of the chain should be adapted to the distance between the free sag and tension of the chain should be between 5-l0mm. Shaft transmission: (The shaft transmission is designed without a chain, check the thin oil lubrication of the transmission shaft)
4. The brake adjustment should be reliable and flexible. (Note: Rainy and snowy days will increase the braking distance)
5. For models with folding function, the quick release device must be locked before riding!

Tip: The torque of 19.6Nm is about to be tightened with a wrench to the point that the hand can no longer be tightened. The torque of 30Nm is to be tightened with the wrench to the point where the hand can no longer be tightened, and then the foot is pressed hard to make it unable to move .

Start method
How to start an electric bicycle is started by the start button on the dashboard, no key is needed, The function of the key is to take the battery and install the battery.

Notes on parking

1. When you get off the vehicle, you should turn off the power switch to prevent accidents caused by the start of the assist mode when the acceleration lever or the wheel is turned during the promotion.
2. Turn off the power and remove the key when parking.
3. For your driving safety, but also to keep your bike in the best condition, please perform regular mainte­nance and cleaning.

Precautions during riding

1. When the vehicle is just started, it should be slowly accelerated to avoid excessive rapid start­ing current causing excessive starting current and wasting electrical energy, and auxiliary pedal starting is better.
2. In order to protect the battery and motor, please use the foot to assist when the vehicle starts or climbs the hill.
3. Under the premise of ensuring safety, you should drive at economic speed as much as possi­ble. And try to avoid frequent braking or frequent start to save energy.
4. During driving, the phenomenon that the speed control lever is still tightened after braking should be avoided to avoid overloading the motor and damaging other mechanical parts.
5. The controller of this car is equipped with overload protection function. The power supply will be cut off automatically when overloaded, and the power supply will be automatically switched on when it returns to normal.
6. The maximum load capacity of this vehicle is 150Kg (including the weight of the rider). Do not overload.
7. When driving on muddy or uneven roads, try to use human power as much as possible.
8. When it is found that there is electricity and can not drive, the power should be turned off to ride, so as not to damage the electrical components.
9. The order of front and rear brakes: brake first, then brake, then brake first or front brake only. dlebars, wheels, etc. to avoid accidents.
10. Avoid driving on bumpy, muddy, gravel roads, stairs, or the use of explosion-proof tires and rims to deform, damage your car or cause danger.
11. Do not drive on the handlebar to avoid accidents caused by uncontrolled operation.
12. The battery is strictly forbidden to be close to the fire source, and avoid being close to flam­ mable and explosive corrosive gas.
13. Do not disassemble the battery box without authorization to avoid damage to internal parts. Do not damage the labels on the battery and the battery compartment cover, otherwise you will lose your warranty commitment.
14. The electric bicycle is suitable for riding by one person. In order not to shift the center of gravity, the operation is unstable, and it should not carry people.
15. It is strictly prohibited to short-circuit the positive and negative poles of the battery with wires or conductors to avoid danger and damage to the battery.
16. The battery should be handled lightly to avoid collision, fall and fall to prevent damage to the casing and accidents.
17. Please note that electric vehicles should not be driven for long distances.
18. Electric bicycles should be driven in non-motorized lanes.
19. It is recommended to wear a helmet when riding;
20. Do not park electric bicycles in building halls, evacuation stairs, walkways and safety exits;

Disclaimer
We must read all precautions carefully before riding, such as all accidents, traffic a cc id e n ts ca used by i m p r o per use, a n d econ om i c p r o b I ems a n d I e g a l liabilities caused by illegal modification or illegal use. Our company is not responsible.

After-sales policy (except artificial)

All out-of-the-box electric vehicles will be shipped after passing the inspection by our profession­al masters. The biggest feature of this product is maintenance-free. In addition to the battery motor controller, the rest are universal parts of the bicycle, and our battery motor controller war­ranty time It’s extra long, so don’t worry.

Note: Warranty time is calculated from the factory date

and fracture phenomena

Front fork| 24 months
Riser| 12 months
handlebar| 6 months
crank| 6 months

Note: The damage caused by man-made is not covered by the warranty. (The battery capacity decay is subject to the test capacity of the machine, not the decay of the riding kilometers.)
Watch the video channel dealing with common problems of G-FOR CE after- sales:G-forceofficial video website: Youtube
lf you have any questions, please send an email to: service@usa- gforce.com

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>