Sunny Health & Fitness SF-B1970 User manual

BELT DRIVE PRO LITE INDOOR
CYCLING BIKE
SF-B1970
USER MANUAL
IMPORTANT! Please retain owner’s manual for maintenance and adjustment instructions. Your
satisfaction is very important to us, PLEASE DO NOT RETURN UNTIL YOU HAVE CONTACTED
US: [e-mail] or 1- 877 - 90SUNNY (877-907-8669).

1
IMPORTANT SAFETY INFORMATION
We thank you for choosing our product. To ensure your safety and health, please use this
equipment correctly. It is important to read this entire manual before assembling and using the
equipment. Safe and effective use can only be achieved if the equipment is assembled,
maintained, and used properly. It is your responsibility to ensure that all users of the equipment
are informed of all warnings and precautions.
1. Before starting any exercise program, you should consult your physician to determine if you
have any medical or physical conditions that could put your health and safety at risk or
prevent you from using the equipment properly. Your physician’s advice is essential if you
are taking medication that affects your heart rate, blood pressure, or cholesterol level.
2. Be aware of your body’s signals. Incorrect or excessive exercise can damage your health.
Stop exercising if you experience any of the following symptoms: pain, tightness in your
chest, irregular heartbeat, shortness of breath, lightheadedness, dizziness, or feelings of
nausea. If you do experience any of these conditions, you should consult your physician
before continuing with your exercise program.
3. Keep children and pets away from the equipment. The equipment is designed for adult use
only.
4. Use the equipment on a solid, flat level surface with a protective cover for your floor or carpet.
To ensure safety, the equipment should have at least 2 feet (60 CM) of free space all around
it.
5. Ensure that all nuts and bolts are securely tightened before using the equipment. The safety
of the equipment can only be maintained if it is regularly examined for damage and/or wear
and tear.
6. Always use the equipment as indicated. If you find any defective components while
assembling or checking the equipment, or if you hear any unusual noises coming from the
equipment during exercise, discontinue use of the equipment immediately and do not use
until the problem has been rectified.
7. Wear suitable clothing while using the equipment. Avoid wearing loose clothing that may
become entangled in the equipment.
8. Do not place fingers or objects into the moving parts of the equipment.
9. The maximum weight capacity of this unit is 245 pounds (110 KG).
10.This equipment is not suitable for therapeutic use.
11.To avoid bodily injury and/or damage to the product or property, proper lifting and moving are
required.
12.Your product is intended for use in cool and dry conditions. You should avoid storage in
extreme cold, hot or damp areas as this may lead to corrosion and other related problems.
13.This equipment is designed for indoor and home use only; it is not intended for commercial
use.

2
EXPLODED DIAGRAM
1
33
2
3
4
5
6
7
8
9
29
33
33
29
28 27 26
67 54 62 60 66 63 90 15
92 71R69R
99
72
95
96
95
68
61
24
20
22
23
25
25
21
10
19
12
20 76
73 67
75
97
97
93
16
18
94
53
51
55
83 26
27 28
85
79
78
77
78
80
82
84
8887
81
74
50
48
46
44
43
46
44
47
48
49
50
70L 99 72 69L
71L
96
92 91
15
95
95
89
3130 28 31
30
32
29 33
33
29
70R
79
11
14
42
13
35
39
38
40
42
13
35
41
37 34
36
14 40
15
61
45
45
A S6 B S13-14-15
52 56
58 57 59
64 65
C S17-19
39
87
100
10b
10a
13a
17
101
102
102 102
102
102

3
PARTS LIST
No.
Description
Spec.
Qty.
No.
Description
Spec.
Qty.
1
Main Frame
1
37
Nylon Nut
M10
2
2
Handlebar Post
1
38
Device Holder
1
3
Magnetic Plate
1
39
Screw
M5*10*Φ10
3
4
Front Stabilizer
1
40
Screw
M6*12*S5
4
5
Middle Handlebar
1
41
Foam Grip
Φ23*3*600
1
6
Handlebar
1
42
Foam Grip
Φ23*3*435
2
7
Seat Post
1
43
Flywheel
8*Φ420*34*4-M8*Φ6
5
1
8
Seat Slider
1
44
Flywheel Cover
Φ408.1*19*t2.5
2
9
Rear Stabilizer
1
45
Screw
ST4.2*19*Φ8
6
10
Computer
1
46
Bearing
6001-2RS
2
10a
Computer Wire 1
1
47
Flywheel Axle
Φ12*130*M12*1.0*48
*25
1
10b
Computer Wire 2
1
48
Hexagon Nut
M12*1*H5*S17
3
11
Trunk Wire
1
49
Hexagon Nut
M12*1*H7*S19
1
12
Sensor Wire
1
50
Hexagon Nut
M12*1*H11*S18
2
13
Pulse Sensor
2
51
Idler Wheel
Φ39.5*Φ12*23
1
13a
Pulse Sensor Wire
1
52
Idler Shaft
Φ19*43.4*M10*1.0
1
14
Screw
ST4.0*19*Φ11
2
53
Wave Washer
d12*Φ17*0.3
1
15
Screw
ST4.2*16*Φ8
3
54
Washer
d6*Φ16*1.5
4
16
Nut
S35*12*M30*1.5*
M16
1
55
Bolt
M6*10*Φ15*1.2
1
17
Shipping Tube
1
56
Hexagon Nut
M10*1*H8*S15
1
18
L Knob
M16*1.5*35
1
57
U-shaped Block
30*10*1.5
1
19
Bolt
M5*8*Φ10
1
58
Bolt
M6*50*Φ12*3
1
20
Bushing
PT70*30*PT60*2
0*L85
2
59
Nylon Nut
M6*H6*S10
1
21
Seat
1
60
Middle Axle
Φ20*172*51.7*77.8
1
22
Knob
M10*Φ58*32
1
61
Bearing
6004-2RS
2
23
Washer
d10*Φ30*2.5
1
62
Belt Wheel
Φ240*20*Φ20.1*Φ60-
6PJ
1
24
Adjustment Knob
M16*1.5*27*Φ56
1
63
Belt
6PJ480
1
25
End Cap
PT50*25*16
2
64
C-clip
d20
1
26
Bolt
M8*20*S6
4
65
Wave Washer
d21*Φ27*0.3
1
27
Spring Washer
d8
4
66
Bolt
M6*16*S10
4
28
Washer
d8*Φ16*1.5
6
67
Nylon Nut
M6*H6*S10
5
29
End Cap
PT70*30*20
4
68
Sleeve
Φ25*Φ20.2*5.5
1
30
Transportation Wheel
Φ48*22*Φ8*22
2
69L/R
Crank
165
2
31
Bolt
M8*40*10*S6
2
70L/R
Pedal
9/16"
2
32
Nylon Nut
M8*H7.5*S13
2
71L/R
Nylon Nut
9/16"
2
33
Foot Pad
Φ52*43*M8
5
72
Hexagon Nut
M10*1.25*H7.5*S14
2
34
Plug
Φ12*11*Φ3
3
73
Tension and Brake
Handle
Φ5*800*Φ1.5*165
1
35
End Cap
Φ25*16
2
74
Magnet
40*25*5
2
36
Bolt
M10*35
2
75
Screw
ST3*10*φ5.6
2

4
No.
Description
Spec.
Qty.
No.
Description
Spec.
Qty.
76
Bolt
M6*50*10*S5
1
91
Battery Cover
1
77
Axle
Φ12*53.5*47.4*M6
1
92
Cover
2
78
C-clip
d12
2
93
Upper Cover
1
79
Washer
d6*Φ12*1.2
2
94
Lower Cover
1
80
Magnetic
Regulating Seat
1
95
Screw
ST4.2*19*Φ8
4
81
Brake Pad
72*35*4.0
1
96
Screw
M6*12*Φ12
2
82
Bushing
Φ17.5*2.5*Φ15*6*Φ6
1
97
Screw
M5*16*Φ10
2
83
Spring
Φ1.6*Φ15*81*N30
1
98
-
-
-
84
Screw
M6*20*Φ10.5
1
99
Crank Plug
2
85
Bolt
M6*12*S5
1
100
Bottle Holder
1
86
-
-
-
101
Spacer
Φ16*Φ12.1*47.25
1
87
Washer
d5*Φ10*1.0
3
102
Hexagon Nut
M8
5
88
Nylon Nut
M5*H5.5*S10
1
A
Allen Wrench
S6
1
89
Left Belt Cover
1
B
Spanner
S13-14-15
1
90
Right Belt Cover
1
C
Spanner
S17-19
1
HARDWARE PACKAGE
26 M8*20*S6 2PCS
36 M10*35 2PCS
39 M5*10*Φ10 1PC
28 d8*Φ16*1.5 2PCS
27 d8 2PCS
37 M10 2PCS
23 d10*Φ30*2.5 1PC
22 M10*Φ58*32 1PC
B S13-14-15 1PC
A S6 1PC
C S17-19 1PC
Ordering Replacement Parts (U.S. and Canadian Customers only)
Please provide the following information in order for us to accurately identify the part(s) needed:
The model number (found on cover of manual)
The product name (found on cover of manual)
The part number found on the “EXPLODED DIAGRAM” and “PARTS LIST” (found near the front
of the manual)
Please contact us at [email protected] or 1- 877 - 90SUNNY (877-907-8669).

5
ASSEMBLY INSTRUCTIONS
We value your experience using Sunny Health and Fitness products. For assistance with parts
or troubleshooting, please contact us at [e-mail] or 1-877-90SUNNY
(877-907-8669).
A S6 1PC
B S13-14-15 1PC S15
26 M8*20*S6 4PCS
27 d8 4PCS
28 d8*Φ16*1.5 4PCS
26
27
28 26
27
28
70L
70R
71R
71L
69R
69L
1
C S17-19 1PC
4
9
26
27
28
17
Wooden block
71L/R 9/16"
B
S15
70L
69L
71L
70L
69L
C
S19
70R
69R
B
S15
70R
69R
71R
C
S19 B
S15
B
S15
STEP 1:
Remove 2 Bolts (No. 26),2Spring Washers (No. 27),
and 2Washers (No. 28) from Shipping Tube (No. 17).
You may save the Shipping Tube (No. 17) and wooden
blocks in case you’d like to repackage and transport this
bike in the future.
Attach the Front & Rear Stabilizers (No. 4 & No. 9) to the
Main Frame (No. 1) using 4 Bolts (No. 26), 4 Spring
Washers (No. 27), and 4 Washers (No. 28). And 2 Bolts
(No. 26), 2 Spring Washers (No. 27) and 2 Washers (No.
28) that were just removed. Tighten with Allen Wrench
(No. A).
Note: Left Pedal (No. 70L) is marked "L" and Right
Pedal (No. 70R) is marked “R”. Remove the Nylon
Nuts (No. 71L/R) from Pedals (No. 70L/R) use
Spanner (No. C).
Align the Left Pedal (No. 70L) with the Left Crank (No.
69L)at 90°and gently insert the pedal into the crank
arm. Turn the Left Pedal (No. 70L) counter-clockwise
as tightly as you can with your hand, then tighten and
securely with Spanner (No. B).
Hold the bolt of the Left Pedal (No. 70L) use Spanner
(No. B). Screw the Left Nylon Nut (No. 71L) clockwise
to the thread end of the Left Pedal (No. 70L) securely
with Spanner (No. C).
Align the Right Pedal (No. 70R) with the Right Crank
(No. 69R) at 90°and gently insert the pedal into the
crank arm. Turn the Right Pedal (No. 70R) clockwise
as tightly as you can with your hand, then tighten and
securely with Spanner (No. B).
Hold the bolt of the Right Pedal (No. 70R) use
Spanner (No. B). Screw the Right Nylon Nut (No.
71R) counter-clockwise to the thread end of the Right
Pedal (No. 70R) securely with Spanner (No. C).

6
We value your experience using Sunny Health and Fitness products. For assistance with parts
or troubleshooting, please contact us at [e-mail] or 1-877-90SUNNY
(877-907-8669).
A S6 1PC
Figure B
11
12
36 M10*35 2PCS
39 M5*10*Φ10 1PC
Figure A
12
18
1
C S17-19 1PC
37 M10 2PCS
2
10
39
38
36
6
13a 11
37
10b
11
10b
10a
10a
13a
Figure C
23 d10*Φ30*2.5 1PC
22 M10*Φ58*32 1PC
8
7
22
23
STEP 2:
Connect Trunk wire (No. 11)with Sensor Wire (No. 12)
(Figure A). Loosen and pull out the L Knob (No. 18).
Then insert the Handlebar Post (No. 2) to Main Frame
(No. 1), insert and tighten with the L Knob (No. 18) after
adjusting the Handlebar Post (No. 2) to the desired
position.
Attach the Handlebar (No. 6) to Handlebar Post (No. 2)
using 2 Bolts (No. 36)and 2 Nylon Nuts (No. 37).
Tighten with Spanner (No. C).
Attach the Device Holder (No. 38) to Handlebar (No. 6)
using Screw (No. 39).Tighten with Allen Wrench (No.
A).
Insert the Computer (No. 10) to Handlebar (No. 6)
(Figure B). Connect Pulse Sensor Wire (No. 13a) with
Computer Wire 1 (No. 10a) and connect Trunk wire
(No. 11) with Computer Wire 2 (No. 10b) (Figure C).
STEP 3:
Attach the Seat Slider (No. 8) to the Seat Post (No.
7), tighten and secure with Washer (No. 23) and
Knob (No. 22).

7
We value your experience using Sunny Health and Fitness products. For assistance with parts
or troubleshooting, please contact us at [email protected] or 1-877-90SUNNY
(877-907-8669).
39
87
100
1
39 M5*10*Φ10 2PCS
A S6 1PC
87 d5*φ10*1.0 2PCS
STEP 4:
Remove 2Screws (No. 39) and 2Washers (No. 87)
from Main Frame (No. 1).Attach Bottle Holder (No.
100) to Main Frame (No. 1) with 2 Screws (No. 39)
and 2Washers (No. 87) that were just removed.
Tighten and secure with Allen Wrench (No. A).
The assembly is complete!

8
BATTERY INSTALLATION AND REPLACEMENT
10
Battery
Battery cover
BATTERY INSTALLATION
1. Take out 2 AAA batteries from computer box.
2. Press the buckle of battery cover on the back of the Computer (No. 10), then remove battery
cover.
3. Install 2 AAA batteries into the battery case on the back of the Computer (No. 10). Pay attention
to the battery + and –poles before installing.
4. Press the buckle of battery cover, then put the battery cover back to the back of the Computer
(No. 10).
The installation is complete!
BATTERY REPLACEMENT
1. Press the buckle of battery cover on the back of the Computer (No. 10), then remove battery
cover.
2. Remove the 2 old AAA batteries in the battery case and install 2 new AAA batteries into the
battery case on the back of the Computer (No. 10). Pay attention to the battery + and –poles
before installing.
3. Press the buckle of battery cover, then put the battery cover back to the back of the Computer
(No. 10).
The replacement is complete!
NOTE: Always change both batteries at the same time. Do not mix battery types and do not mix old
and new batteries. Dispose batteries according to your state and regional guidelines.

9
ADJUSTMENTS & USAGE GUIDE
73
A
B
TENSION ADJUSTMENT:
Increasing or decreasing the tension allows you to add variety
to your workout sessions.
There are 7 levels resistance. Level 1 is the lowest and level 7
is the highest.
To increase the tension, press the Tension and Brake Handle
(No. 73) (“+”) down (Arrow B). When you hear a "click", it
means the resistance is increased by 1 level.
To decrease the tension, pull the Tension and Brake Handle
(No. 73) (“-”) up (Arrow A). When you hear a "click", it means
the resistance is decreased by 1 level.
73
EMERGENCY BRAKE FUNCTION:
The flywheel of the bike has a large inertia. When you need to
get off the bike, press down the Tension and Brake Handle
(No. 73) firmly. Please wait until the flywheel has completely
stopped rotating before releasing the Tension and Brake
Handle (No. 73).You can get off the bike once the flywheel
has stopped.
Figure B Figure A
PEDAL STRAP ADJUSTMENT:
Your feet should be secured in the toe clips during exercise.
Place your feet as far forward into the toe-clips as you can.
With your feet in place, turn the crank to bring one foot to within
arm’s reach, grasp the pedal strap and pull it upward to tighten
the toe-clip cage. Next, insert the strap back into the hoop of
the toe-clip. Repeat this process to secure your other foot.
SEAT ADJUSTMENT:
The seat of this bike is fully adjustable.
Move Up and Down：loosen counter-clockwise and pull out
the Adjustment Knob (No. 24), then raise or lower the Seat
Post (No. 7) to the desired height. Once adjusted, re-insert
and tighten the Adjustment Knob (No. 24) to secure the Seat
Post (No. 7) clockwise in place. (Figure A).
Move Forward and Backward：loosen counter-clockwise
and pull out the Knob (No. 22), then move the Seat Slider
(No. 8) forward or backward to the desired position, then
tighten the Knob (No. 22) clockwise. (Figure B).
Figure A
24
7
8
22
Figure B