Gymstick PRO20.0 User manual

PRO20.0 EXERCISE BIKE
USER MANUAL
IMPORTANT: Read all instructions carefully before using this product. Retain this owner’s manual for future
reference. The specications of this product may vary from this photo, subject to change without notice.

2PRO20.0 EXERCISE BIKE
BEFORE YOU BEGIN
Thank you for choosing the Gymstick PRO20.0 Exercise Bike. We take great pride in producing
this quality product and hope it will provide many hours of e󰀨ective exercise to make you feel bet-
ter, look better and enjoy life to its fullest.
TABLE OF CONTENT
1. SAFETY INSTRUCTIONS...................................................................................................3
2. EXPLODED DRAWING....................................................................................................... 4
3. PARTS LIST.........................................................................................................................6
4. ASSEMBLY INSTRUCTIONS..............................................................................................9
5. COMPUTER OPERATION INSTRUCTIONS...................................................................... 14
6. MAINTENANCE.................................................................................................................. 20
7. TROUBLESHOOTING........................................................................................................ 20
8. IMPLIED WARRANTY......................................................................................................... 21
READ AND FOLLOW THE SAFETY INSTRUCTIONS. FAILURE TO FOLLOW THESE INSTRUCTIONS
CAN RESULT IN SERIOUS INJURY.
!
NOTIFICATION!

3PRO20.0 EXERCISE BIKE
!
WARNING!
SAFETY INSTRUCTIONS
Basic precautions should always be followed, including the following safety instructions when using
this equipment: Read all instructions before using this equipment.
1. Keep children and pets away from the machine at all times. DO NOT leave unattended children in the
same room with the machine.
2. Handicapped or disabled persons should not use the machine without the presence of a qualied health
professional or physician.
3. If the user experiences dizziness, nausea, chest pain, or any other abnormal symptoms, STOP the
workout at once. CONSULT A PHYSICIAN IMMEDIATELY.
4. Before beginning training, remove all within a radius of 2 meters from the machine. DO NOT place any
sharp objects around the device.
5. Position the machine on a clear, level surface away from water and moisture. Place mat under the unit to
help keep the machine stable and to protect the oor.
6. Use the machine only for its intended use as described in this manual. DO NOT use any other
accessories not recommended by the manufacturer.
7. Assemble the machine exactly as the descriptions in the instruction manual.
8. Check all bolts and other connections before using the machine for the rst time and ensure that the
trainer is in the safe condition.
9. Hold a routine inspection of the equipment. Pay special attention to components which are the most
susceptible to wear o󰀨, i.e. connecting points and wheels. The defective components should be replaced
immediately. The safety level of this equipment can only be maintained by doing so.
10. NEVER operate the machine if it is not functioning properly.
11. This machine can be used for only one person’s training at a time.
12. Do not use abrasive cleaning articles to clean the machine. Remove drops of sweat from the machine
immediately after nishing training.
13. Always wear appropriate workout clothing when exercising. Running or aerobic shoes are also required.
14. Before exercising, always do warm-up and stretching rst.
15. Maximum user weight: 180 kg.
BEFORE BEGINNING THIS OR ANY EXERCISE PROGRAM, CONSULT YOUR PHYSICIAN FIRST.
THIS IS ESPECIALLY IMPORTANT FOR INDIVIDUALS OVER THE AGE OF 35 OR PERSONS WITH
PRE-EXISTING HEALTH PROBLEMS.

4PRO20.0 EXERCISE BIKE
EXPLODED DRAWING
48R
3 2
2926222421
50
48L
51L
49 46
416 7
8586 87
78
14
17
1
84 83 82
47
51R
27 30
56 38
11
28
76
99
3
45
6
45
12
10L 10R
71L 71R
75
9
8816
9
7A
16 79
39
36
37L 37R35L 35R
3433
25 23
43
38
42
31
79
77
52
55
53
5 5
63 64 65 3973 38
9
16 15
418
7A
32L 32R
44
68 74
39
54
101
59 61 60
38
57
58
88
TAICO
62
13
89
90
91 92
93 28
67
95 96
20 19 72 69 18 94
98
97
103 100
102
40 39
38
104105
106 107

5PRO20.0 EXERCISE BIKE
EXPLODED DRAWING
CHECK LIST
1
X1
51L & 51R
13 17
2
4
X1X1
X1
5
36
X1
X1
40
X1X1
75
X1
X1
X1
69
X1
X1
104 & 105
106
X1
7 M8*1.25*70L 4PCS 9 D15.4*D8.2*2T 8PCS
(mm)
STEP 1
KH-734S2
16 D16*D8.5*1.2T 8PCS
7A M8*1.25*110L 4PCS
STEP 3
15 M8*1.25*15L 4PCS 16 D16*D8.5*1.2T 4PCS 9 D15.4*D8.2*2T 4PCS
STEP 4
39 M5*12L 6PCS
STEP 5
41 M8*1.25*50L 2PCS
8 D22*1.5T 2PCS
42 97.2*75*42 1PC
38 ST4.2*15L 4PCS
39 M5*12L 8PCS
107 ST4.2*15L 4PCS

6PRO20.0 EXERCISE BIKE
PARTS LIST
Part no. Description Specication Qty
1 Main frame 1
2 Rear stabilizer 1
3Adjustable wheel 4
4 Front stabilizer 1
5Front stabilizer cover 2
6 Allen bolt M8*1.25*40L 2
7 Hex bolt M8*1.25*70L 4
7A Hex bolt M8*1.25*110L 4
8Curved washer D22xD8.5x1.5T 2
9 Spring washer D15.4xD8.2x2T 12
10L Front decorative cover(left) 1
10R Front decorative cover(right) 1
11 Upper decorative cover 1
12 Rear cover 1
13 Seat post 1
14 Inner tube 50*100*340L 2
15 Allen bolt M8*1.25*15L 4
16 Flat washer D16*D8.5*1.2T 12
17 Handlebar post 1
18 Adjustable handle 1
19 End cap (1) 2
20 End cap (2) 2
21 bearing #6004-2RS (C0), SKF 2
22 waved washer D27*D20.3*0.5T 1
23 Screw M3*0.5*30L 4
24 C ring D22.5*D18.5*1.2T 2
25 cross screw M3*0.5*12L 2
26 crank axle 1
27 pulley wheel 1
28 anti-loose nut M6*1.0*6T 5
29 Hex bolt M6x1.0x15L 4
30 Multi-groove belt 1
31 Round Magnet 1
32L Upper cable for quick button (2) 400L 1
32R Upper cable for quick button (1) 400L 1
33 Upper cover for handpulse 2
34 Lower cover for handpulse 2
35L Membrane button (-) 1
35R Membrane button (+) 1
36 Handlebar 1
37L Lower cable for quick button (2) 850L 1
37R Lower cable for quick button (1) 850L 1
38 Screw ST4.2*15L 38
39 cross bolt M5*0.8*12L 16
40 Back cover for console 337.6*225.5*58.4 1

7PRO20.0 EXERCISE BIKE
PARTS LIST
Part no. Description Specication Qty
41 Bolt M8*1.25*50L 2
42 rear protective cover for handlebar 1
43 front protective cover for handlebar 1
44 Flat Washer D26*D21*1.5T 1
45 crank cover 2
46 left chain cover 1
47 right chain cover 1
48L left crank 1
48R right crank 1
49 anti-loosing nut M10*1.25*9T 2
50 Bolt cover 2
51L&51R Pedal 1
52 Screw M6*1.0*15L 4
53 spring washer D10.5*D6.1*1.3T 4
54 Flat Washer D13*D6.5*1.0T 4
55 Self-generator 1
56 Pin D6*26.5*7.7 12
57 Connecting cable 500L 1
58 Connecting cable(2) 1000L 1
59 Battary connecting cable 750L 1
60 Bu󰀨er 25*2T*80 2
61 Chargeable battery 1
62 Fixing plate(1) 1
63 Upper computer cable 300L 1
64 Middle computer cable 1000L 1
65 Lower computer cable 1350L 1
67 Tension cable D1.5*507.5L 1
68 control board 1
69 Saddle 1
71L left gasket for chaincover 1
71R Right gasket for chaincover 1
72 Adjustable tube for saddle 1
73 sensor cable 500L 1
74 Electric cable 700L 1
75 Upper protective cover 1
76 computer 1
77 C ring S-17(1T) 1
78 waved washer D17*D22*0.3T 3
79 bearing 6203-2RS , SKF 2
82 Flat washer D28*D8.5*3T 1
83 Plastic cover 2
84 Spring D2.2*D14*55L 1
85 Fixing plate for idle wheel 1
86 Plastic washer D10*D24*0.4T 2

8PRO20.0 EXERCISE BIKE
PARTS LIST
Part no. Description Specication Qty
87 Nut M8*1.25*6T 1
88 Nylon nut M8*1.25*8T 3
89 Adjustable pole 1
90 Allen bolt M8*1.25*16L 2
91 spring D1.5*D14*50L 1
92 Bolt M5*0.8*40L 1
93 Fixing bar 1
94 Tighten gasket 1
95 screw M6*1.0*45L 1
96 Pull handle 1
97 End cap for adjustable handle 1
98 bolt M8x1.25x50L 1
99 bu󰀨er D10.5*20L 2
100 block plate 1
101 moving wheel 2
102 Round head cross screw M5x0.8x10L 4
103 Inner hex fastening screw M5*0.8*12L 2
104 water bottle holder 1
105 water bottle holder(front)(black) 1
106 water bottle holder(rear)(black) 1
107 cap 2
Allen spanner 1
open spanner 1

9PRO20.0 EXERCISE BIKE
ASSEMBLY INSTRUCTIONS
STEP 1.
1. Throw away the tube and bolts under the front side of the main frame into trash can as per g 1-1. Please note
they are just the parts to support the main frame to simplify your assembly.
2. Raise up the frame, assemble the front stabilizer (4) onto the main frame (1) by using the cross bolt (7&7A), the
spring washer (9) and the at washer (16). Please refer to 1-2.
3. Throw away the tube and bolts under the rear side of the main frame into trash can as per g 1-3. Please note they
are just the parts to support the main frame to simplify your assembly.
4. Raise up the frame, assemble the rear stabilizer (2) onto the main frame (1) by using the cross bolt (7&7A), the
spring washer (9) and the at washer (16). Please refer to 1-4.
Step-1
x4
x8
x8
7
9
16
13
15
x4
7A
4 7 916
7A
47916
7A
1-2
2
916 7A
1
1
2
916 7A
1-4
1-3
1-1

10PRO20.0 EXERCISE BIKE
ASSEMBLY INSTRUCTIONS
STEP 2.
1. Assemble the saddle onto the saddle post by spanner. Please refer to 2-1 & 2-2
2. Adjust the saddle position vertically. Please refer to 2-3
3. Adjust the saddle position horizontally. Please refer to 2-4
Step-2
UP
DOWN
2-3
2-4
1
13
13
2-1
2-2
13
15

11PRO20.0 EXERCISE BIKE
ASSEMBLY INSTRUCTIONS
STEP 3.
1. Suggest assembling this step by two persons.
2. First, lift up the upper protective cover (75) like g. (3-1), then connect the console cable (64 & 65) like g.(3-2)
3. Insert the front post (17) on the main frame and tighten it by the at washer (16), the spring washer (9),and bolt
(15).Place down the upper protective cover and make it tight on the main frame.
Step-3
1
3-1
75
17
64
65
9
15
16
75
17
65
64
3-2
x4
x4
x4
15
9
16
13
15

12PRO20.0 EXERCISE BIKE
ASSEMBLY INSTRUCTIONS
STEP 4.
1. Connect the console (76) with middle cable for console (64). See g 4-1.
2. Through the console cable into the front post (17) out. See g 4-2.
3. Tighten the console onto front post by bolt (39). See g 4-3
4. Fix the back cover for console (40) with console by cross bolt (39). See g 4-4.
Step-4
64
76
76
64
39
1
76
4-1
4-2
76
17
39
17
76
4-3
4-4
1739
40
40
x8
39
39

13PRO20.0 EXERCISE BIKE
ASSEMBLY INSTRUCTIONS
STEP 5.
1. Connect the console (76) with Lower cable for quick button (2) (37L) and Lower cable for quick button (1) (37R).
2. Assemble the handlebar (36) onto front post (17) by the curved washer (8) and hex bolt (41). Cover the rear
protective cover for handlebar (42) .
3. Assemble the pedal (51L & 51R) with left crank (48L & 48R). Left pedal by counter-clockwise, right pedal by
clockwise.
4. Cover the cover of front & rear stabilizer (5) and left & right handrail cover (114&115),fasten them by using the
cross bolt (39).
5. Assemble the water bottle holder(front)(black) (105) & cap (107) & the water bottle holder(rear)(black) (106) onto
the front post .See above pictures.Please refer to g (5-1)(5-2)(5-3)
Step-5
841
36
17
76
37L
76 76
37R
R
48R
51R
51R
51L
48L
51L
48L 1
39
5
39
5
x6
39
x2
41
x28
13
15
42
66
5-1
5-2
5-3
17
105
38
107
106

14PRO20.0 EXERCISE BIKE
COMPUTER OPERATION INSTRUCTIONS
DISPLAY FUNCTIONS
BUTTON FUNCTIONS
ITEMS DESCRIPTION
TIME Setting range: 0:00~99:00 (±1 minute)
Display range: 0:00~99:59
DISTANCE Setting range: 0.00~99.0 (±1)
Display range: 0.00~99.99
CALORIES Setting range: 0~9990 (±10)
Display range: 0~9999
PULSE Setting range: 0~30~230 (±1)
Display range: 0~230
WATTS Display range: 0~999
SPEED Display current working speed, max 99.9
RPM Display current RPM
Display range : 0~999
ITEMS DESCRIPTION
+ Setting or increase the training resistance.
- Setting or decrease training resistance.
ROTARY BUTTON To conrm all setting.
STAR/STOP To start or stop workout.
RESET In setting mode or in selection mode, press to go back to initial training
mode. If keep pressing this button 2s, computer will restart.
RECOVERY To test heart rate recovery status.
BODY FAT To test body fat % when press the BODY FAT button in standby mode.

15PRO20.0 EXERCISE BIKE
COMPUTER OPERATION INSTRUCTIONS
OPERATING MANUAL
Power on
1. When powering on the device, the LED-display will display all segments, such as wheel diameter, KM or
ML, Eurasian gauge. (Image 1 & 2)
2. Enter into user selection mode, setting user’s private le U1-U4 (image 3), GENDER (image 4), AGE
(image 5), HEIGHT (image 6), WEIGHT (image 7). After setting the information, device will enter into
function selection mode: MANUAL, PROGRAM, USER PROGRAM, H.R.C, WATT.
Image 1. Image 2.
Image 3. Image 4.
Image 5. Image 6.
Image 7.
Power o󰀨
If without RPM input for 4 minutes, LED-display will be closed and the computer will be in power o󰀨 -mode.
If RPM is detected again, the computer will wake up.

16PRO20.0 EXERCISE BIKE
COMPUTER OPERATION INSTRUCTIONS
MANUAL FUNCTION
By turning buttons “+” or “-” , user may set up TIME > DISTANCE > CALORIES > PULSE (image 8 - 10).
Press START/STOP without settings to start a workout, and in working period the user can adjust the
RESISTANCE LEVEL. Press START/STOP again and the computer will enter into break mode, press button
“RESET” to leave this mode.
PROGRAM FUNCTION
In this mode, there are 12 programs (P1~P12) for the user to select (image 11). When the user chooses
a PROGRAM, by turning buttons “+” or “-”, can be set the TIME (image 12). When nished setting press
“START/STOP” to start workout (in break mode the user can choose to adjust the “TIME” value). In START
status, user can adjust RESISTANCE level. During workout, press “START/STOP” and the computer will
enter into break mode, press “RESET” leave this mode.
Image 8. Image 9.
Image 11. Image 12.
Image 10.

17PRO20.0 EXERCISE BIKE
COMPUTER OPERATION INSTRUCTIONS
PROGRAM FUNCTION
All the di󰀨erent programs are shown below (P1-P12).
USER PROGRAM FUNCTION
By turning buttons “+” or “-” , the user can set PROGRAM, then press MODE/ENTER to conrm the setting
value of RESISTANCE (image 13). If the user wants to stop the setting, keep pressing MODE/ENTER
button for 2 seconds, LED-display will show last value set. While pressing MODE/ENTER button for 2
seconds, the user can set “TIME” (image14), if no value is set, press “START” to enter into working mode. In
START mode user can adjust the resistance. During the workout press “START” to enter into break mode,
then press button “RESET” leave this mode.
P1
P5
P9
P3
P7
P11
P2
P6
P10
P4
P8
P12
Image 13. Image 14.

18PRO20.0 EXERCISE BIKE
COMPUTER OPERATION INSTRUCTIONS
H.R.C FUNCTION
In H.R.C mode, the LED screen will show heart rate percentage 55%, 75%, 90% and TARGET. User may
select one of the heart rate percentages by turning “+” or “-” button (image 15). TARGET preset value is
100, user can also set the pulse value by themselves. By pressing the rotary button TIME can be set (image
16). If there is no need to set TIME, press “START/ STOP “, device will start the workout according to the
H.R.C function and show the current pulse value. If pulse is not detected, the LED-display will show as seen
in image 17. During the workout press “START” enter into break mode, then press “RESET” to leave this
mode.
WATT FUNCTION
The preset watt value is 120 (image 18). By turning “+” or “-” button, the WATT value can be set (setting
range is 10-350). When done setting, press the rotary button to set TIME (image 19), if there is no need to
set the TIME value, press “START/STOP”, resistance value will adjust automatically according to the set
target WATT value. During the workout press “START/STOP” to enter into break mode, then press button
“RESET” to leave this mode.
Image 15. Image 16.
Image 18. Image 19.
Image 17.

19PRO20.0 EXERCISE BIKE
COMPUTER OPERATION INSTRUCTIONS
RECOVERY FUNCTION
1. If there is no detected pulse input press “RECOVERY” button.
2. If there is a detected pulse input, press button to enter “RECOVERY” mode; time countdown from 00:60
to 00:00 (image 20). Screen will display your heart rate recovery status F1-F6 (image 21). F1 is the best
and F6 is the worst. User may keep exercising to improve their heart rate recovery status.
3. Press the RECOVERY button to leave this test mode.
BODY FAT FUNCTION
1. Press “BODY FAT” button to start testing your body fat (image 22 - image 24). At this time the user
should grab the hand grips correctly, computer will display the test value.
2. If any of the following situations occur, there will be an indication showing on display.
• “E-1” (image 25) - User did not put their thumb properly on the conductor. Please try again.
• “E-4” - BODY FAT advice has exceeded the setting range (5%~50%).
3. After the testing has nished, display will show both BODY FAT % and BMI (image 26, image 27).
During BODY FAT testing mode, press BODY FAT button to cancel the test and go back to continue the
previous excercise.
Image 20. Image 21.
Image 22. Image 23.
Image 24. Image 25.
Image 26. Image 27.

20PRO20.0 EXERCISE BIKE
MAINTENANCE
CLEANING
The machine can be cleaned with a soft cloth and mild detergent. Do not use abrasives or solvents on
plastic parts. Please wipe your perspiration o󰀨 after each use. Be careful not get excessive moisture on the
computer display panel as this might cause an electrical hazard or electronics to fail.
Please keep the machine, especially the computer console, out of direct sunlight to prevent screen
damage. Please inspect all assembly bolts and moving parts on the machine for proper tightness every
week.
STORAGE
Store the machine in a clean and dry environment away from children.
TROUBLESHOOTING
PROBLEM SOLUTION
The machine wobbles when in use. Turn the stabilizers to level the exercise bike.
There is no display on the computer
console.
1. Remove the computer console and verify the
wires that come from the computer console
are properly connected to the wires that come
from the front post.
2. Check if the battery is correctly positioned and
that the wires are in proper contact with the
battery.
There is no heart rate reading or heart rate
reading or is erratic / inconsistent.
1. Make sure that the wire connections for the
hand pulse sensors are secure.
2. To ensure the pulse readout is more precise,
please always hold on to the handlebar grip
sensors with two hands instead of just with
one hand only when you try to test your heart
rate gures.
3. Gripping the hand pulse sensors too tight. Try
to maintain moderate pressure while holding
onto the hand pulse sensors.
The exercise bike makes a squeaking noise
when in use.
The bolts may be loose on the exercise bike,
please inspect the bolts and tighten the loose bolts.