Golden Motor E-bike Shrinker User manual

E-bike Shrinker

PRECAUTIONS
Thank you for buying E-bike Shrinker.We hope it brings you many hours of enjoyment
and safe riding.
For safe and compact shipping, some parts have been detached from E-bike
Shrinker.Some Shrinker assembly is required before you can begin riding.
Please follow these instructions carefully, including assembly instructions and operating
guidance. If you do not feel confident to assemble the bike yourself, we recommend you visit
your local cycle store for professional help and advice. Your safety is our first priority.

TABLE OF CONTENTS
1BASIC STRUCTURE FIG. AND NAME 1
2OPERATION-PROCESS 2
2.1 Folding process 2
2.2 Unfolding process 3
3BATTERY CHARGER 3
4ATTENTION DETAILS DURING YOUR RIDING 4
5ADJUSTMENT OF MAIN PARTS 5
5.1 Handlebar Adjustment 5
5.2 LE-throttle Grip Working Process 5
5.3 Front Brake Adjustment 6
5.4 Adjustment of Expansion Servo Brake 6
5.5 Wheel Hub Tightening Adjustment 6
5.6 Adjustment of Chain 7
5.7 Assembly of the Pedal 7
6CARE AND MAINTENANCE 8
7MAIN TECHNICAL PARAMETER AND PERFORMANCE INDEX 9
8E-CIRCUIT DIAGRAM OF THE E-BIKE SHRINKER 10
9RETURN AND REPAIRS 10
10 WARRANTY 11
10.1 How the warranty applies 11

10.2 How the warranty does not apply 11
10.3 How the warranty works 12

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E-bike Shrinker User’s Guide
1 Basic Structure fig. and Name
Before assembly and riding ,please check and familiarize yourself with all the parts
below:
1: Saddle
2: Middle Seat Post
3: Big Seat Post
4: Folding Lift Handle
5: Lock System
6: Support Post
7: Li-ion Battery
8: Rear Wheel
9: Kickstand 1
10: E-control set
11: Support Lock end
12: Arc Link
13: Top Four-bar link
14: telescopic Link
15: Down Four-bar Link
16: DC Motor
17: Front Wheel
18: Quick-release Fastener
19: Stem
20: Foldable Handlebar with throttle grip

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E-bike Shrinker User’s Guide
2 Operation-process
2.1 Folding process
Hold ③ and⑥ together by one hand, after they are in touch closer fold state, ②
will slid down to the bottom automatically，and then lift ④ up quickly，by your
hearing the sound of “click”, it means that⑤ is in locked status. Folding process is
finished.see pictures as follows:

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E-bike Shrinker User’s Guide
2.2 Unfolding process
Lift the saddle①, let ③and ⑥rise back in their right place，and then kick ⑨back
softly, the frame of the Shrinker will be pulled open quickly.
Keep attention: Before riding, you must check whether ⑥has been opened to its
right position.
3 Battery Charger
(the charger indicator: red is as the symbol of charging now, green is as the
symbol of battery is full).
Be sure to do the fully charging battery work, before the first use. The charge
time for the first initial 3 use should be 12 hours.
The Li-ion battery can be stored with full charge content. If you do not riding far
distance, it’s not necessary to charge the batteries frequently.
If your Shrinker will be kept a long time stopped without riding, you should take
off the battery box, and be kept with in more than 50% of its content volume,
and do re-charge full in every 3 months.
During the battery charging process, always keep the battery and the charger far
from the place where the children can reach.
Do not try to disassemble or modify the battery charger, in which it do have a
high-voltage e-circuit.
The charger you got are only for our li-ion battery use, we do not keep any
warranty for the other brand or model charger using, which are not supplied by
us.
Do not try to use this battery charger for charging the other batteries, which are
not supplied by us.
Battery balance content volume can be shown at the indicator of the battery,
which can be read once you turn on the e-power switch key.
During your charging the battery process, first plug the connector between the
charger and the battery, then plug the charger to the e-power source, the LED on

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E-bike Shrinker User’s Guide
the charger will shows red, that means the charger is on working. When the LED
becomes green, it means the battery is fully charged. When you finished the
charge work, please first take off the charger’s plug from the e-power source,
and then depart the connector between the battery and the charger. Please do
not work on the opposite process.
During the charging work, the charger and the battery should be placed in a
stable place. The working temperature for the battery ranges between 0 and
45℃。The optimum working temperature ranges between 20℃and 25℃。Do not
place any cover on the battery or the charger in order to keep the battery
ventilation or cooling surrounding. Ensure that no liquids or metal filings diffuse
into the charger; if the battery box surface is founded too hot (higher than 60℃),
during the charging, that might suggest a malfunction. The e-power should be
cut off at once and the battery should be repaired in appointed service station.
4 Attention Details During Your Riding
During the pedal assistant riding, no need to turn off
the power switch, keep the switch on, you will feel
free as just riding a normal bicycle.
Before riding, you can loose quick release ②,
adjust up and down the saddle height for fitting
your well riding, and then lock the quick release fastener ②.
Attention: No need to loose Quick-release fastener ① for adjusting the saddle
height.
The safety line on the seat post must be inserted inside to the middle seat post.
Attention: Minimum depth of the inserted for the seat post should be that, you can
not see the safety line in the middle seat post.
When you adjust the seat post height for your well riding, please pull out the
middle seat post for adjusting its height first, if the height is still not enough,

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E-bike Shrinker User’s Guide
please pull out the seat post for its right height, after that lock the quick-release
fastener ①.
5 Adjustment of Main Parts
5.1 Handlebar Adjustment
See in reference illustration A:
·Insertion depth of the stem can not be less than the
Minimum depth, to make sure that the safety line on the
stem are invisible.
·The fastening torque of the handle bar screw and clamp screw bolt can not be less
than 18 N.m.
Attention：During your adjusting the handlebar stem up or down, please do not let
the connect plug of electrical parts loosed.
5.2 LE-throttle Grip Working Process
(Non for Euro Market)
(As parts○ 20 shown) the E-throttle grip is installed on the right handlebar; during you
turning over in anti-clockwise direction slowly ,the E-power switch will be turned on,
the working E-current will be going larger, and the E-throttle opens larger as well, the
maximum rotate top position can be at 90 degree, as the E-throttle to opened to it’s
top.
As you release the E-throttle grip, it can be returned back to its beginning position
automatically, accordingly the E-power switch will be cut off.

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E-bike Shrinker User’s Guide
5.3 Front Brake Adjustment
See in reference illustration B:
First let the single side touching, loose the terminal screw a little, there are three
holes on the board, when moving up the spring, the elasticity will be raised to
make the gap between brake and rim become bigger and vice versa.
The best gap between brake and rim is 1.5mm.
he best position of brake wire stand is that not to touch the front mudguard.
5.4 Adjustment of Expansion Servo Brake
See in reference illustration C and D，adjust for rear brake：
Loose nut and pull-rod nut of the adjusting screw, unscrew the adjusting screw,
while meantime, hold the brake to make its position is on the1/3——1/2 of total
distance in order the rear brake shoe cling to the center of the brake, to reach
ideal braking effect, and then screw down nut and the pull-rod nut.

5.5 Wheel Hub Tightening Adjustment
When you tightening the wheel hub, the fasten torque should be as below:
For rear wheel hub, the fasten torque can not be less than 40-45 N.m
For front wheel hub, the fasten torque can not be less than 18-20 N.m
Attention: Front wheel hub axle collets nut can not be over-tight, otherwise, it will