Sunny SF-B901B User manual

BELT DRIVE PRO INDOOR
CYCLING BIKE
SF-B901B
USER MANUAL
IMPORTANT: Read all instructions carefully before using this product. Retain
owner’s manual for future reference. For customer service, please contact:
[email protected]

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 assured 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 any medication that may affect 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 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. It is recommended that you lubricate all moving parts on a monthly basis.
7. 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, stop using the equipment immediately and don’t use
the equipment until the problem has been rectified.
8. Wear suitable clothing while using the equipment. Avoid wearing loose clothing that
may become entangled in the equipment.
9. Do not place fingers or objects into the moving parts of the equipment.
10. The maximum weight capacity of this unit is 275 pounds.
11. This equipment is not suitable for therapeutic use.
12. Move with caution when lifting and moving the equipment. Always use proper lifting
technique and seek assistance if necessary.
13. Your product is intended for use in cool, dry conditions. You should avoid storage in
extreme cold, hot, or damp areas as this may lead to corrosion and other related
problems.
14. This equipment is designed for indoor use only! It is not intended for commercial use!

2
EXPLODED DRAWING
1
2
3
4
57
6
3
45
8
7
8
73
4
9
10
11 12 13
14R
14L
5
15 16
17
18
17
19
7
6
20
20
20
21
22
23
24
25
26
27
28
29
30
29
33
32
31

3
INNER EXPLODED DRAWING
41
45
46
1
44
38
36
36
58
7357
56
49
34
39
40
49
42 73
57
43
76
51
53
52
54
55
58
59
60
54
53
52
51
50
61
62
63
64
65
66
71
70
19
69
68
67
72
16
48
48
47
36
47
75
37
36
36
36
35
74
44

4
PARTS LIST
No.
Description
Qty
No.
Description
Qty
1
Main frame
1
39
Middle axle φ20*184*43*10.5*
74.5*4-φ10.1*φ105
1
2
Rear stabilizer
1
40
Belt wheel Φ204*20*5PK
1
3
Nut M10*H7*S17
4
41
Screw M10*16*S6
4
4
Foot pad M10*30*φ52*49
4
42
Crank 170“R”9/16
1
5
End cap J80*40*1.5
4
43
Belt
1
6
Screw M10*25*S6
4
44
Screw M5*20*Φ8.5
3
7
Washer d10*φ20*2
8
45
Wave washer
1
8
Screw M10*15*S6
4
46
Outer chain cover
1
9
Shipping rear tube
1
47
Washer d6*Φ12*1.2
2
10
Shipping front tube
1
48
Screw M6*12*Φ12
2
11
Allen wrench S6
1
49
Reed d20
2
12
Spanner S14-15-17
1
50
Nut M12*1*H19.5*S19
1
13
Open end wrench S13 S15
1
51
Washer d12*φ24*1.5
2
14L/R
Pedal YH-76X 9/16
2
52
Adjustable bolt M8*83*Φ12*5
2
15
Front stabilizer
1
53
Nut M8*H7.5*S13
2
16
Screw M6*12*S5
3
54
Nut M12*1*H6*S19
2
17
Bearing 608ZZ φ8
4
55
Inertia axle 15*162*M12*1*29*29
1
18
Transport wheel φ71*φ19*24
2
56
Crank 170“L”9/16
1
19
Screw Φ7.8*30*M6*15*S5
3
57
Nut M10*1.25*H7.5
2
20
Adjustment knob
M16*1.5*16*Φ49
3
58
Bearing 6202Z
3
21
Bushing F45*F38*153
1
59
Flywheel 18*460*80*30*55*42*PK
1
22
Handlebar post
1
60
Spacer Φ20*Φ15.1*28
1
23
Handlebar
1
61
Clamp brake assembly
1
24
Screw M10*25*S6
2
62
End cap φ22*16
1
25
Washer d10*φ20*1.5
2
63
Nut M6*H7*S10
1
26
Saddle 6618
1
64
Brake pad
2
27
Seat slider
1
65
Screw M6*38*S5
1
28
Saddle post
1
66
End cap F45*45*24
1
29
Bushing F45*F38*153
2
67
Nut M10*H9*S17
1
30
End cap F38*38*14
1
68
End cap F45*45*24
1
31
Water bottle holder
1
69
Brake handle 142*34*46
1
32
Washer d5*Φ10*1
2
70
Washer d10*φ25*1
1
33
Screw M5*12*Φ8.5
2
71
Tension control knob M10*60*40*50
1
34
Bearing 6004-2RS NBK
2
72
Flat washer φ11*φ25*4
1
35
Plastic washer φ6.5*Φ25*6
1
73
Crank cap Φ25*7
2
36
Screw ST4.8*16*Φ10
9
74
Plastic washer Φ30*Φ10.1*3
2
37
Inner chain cover
1
75
End cap Φ38*14
1
38
Front cover
1
76
Nut M12*1.0*H11*S18
1

5
HARDWARE PACKAGE
#7 (d10*Φ20*2.0) 4PCS
#6 (M10*25*S6) 4PCS
#25 (d10*Φ20*1.5) 2PCS
#24 (M10*25*S6) 2PCS
#13 S13-15
#11 S6
#12 S14-15-17

6
ASSEMBLY INSTRUCTIONS
8
78
7
9
10
1
S6
8
7
8
7
STEP 1:
Unscrew Screws (No. 8) using Allen Wrench (No. 11) then, remove and discard the
Front & Rear Shipping Tubes (No. 9 & No. 10).
OPTIONAL: You may save these parts: Screws (No. 8), Washers (No. 7), Front &
Rear Shipping Tubes (No. 9 & No. 10) for future packaging and transportation of bike.

7
STEP 2:
Attach the Front & Rear Stabilizers (No. 15 & No. 2) to the Main Frame (No. 1) using
4 Screws (No. 6) and 4 Washers (No. 7). Tighten and secure with Allen Wrench (No.
11).
7
6
7
6
S6
2
15
1

8
28
22
20
20
1
14R
14L
S13-15
S15
56
42
STEP 3:
Connect the Left & Right Pedals (No. 14L/R) onto the Left & Right Crank Arms (No.
56 &No. 42). Before you begin, immobilize the crank arms by turning the tension
control knob all the way to the right.
NOTE: The Left &Right Pedals (No. 14L/R) are marked Lfor the left pedal and Rfor
right pedal.
Align the Left Pedal (No. 14/L) with the Left Crank Arm (No. 56) at 90 degrees. Gently
insert the pedal into the crank arm and turn the pedal counter-clockwise as tightly as
you can with your hand. Tighten and secure with (15mm) Spanner Wrench.
Align the Right Pedal (No. 14/R) with the Right Crank Arm (No. 42) at 90 degrees.
Gently insert the pedal into the crank arm and turn the pedal clockwise as tightly as you
can with your hand. Tighten and secure with (15mm) Spanner Wrench.
Loosen and remove Adjustment Knobs (No. 20). Insert the Saddle and Handlebar
Posts (No. 28 &No. 22) into the sleeves located on the Main Frame (No. 1).Adjust the
Saddle and Handlebar Posts (No. 28 & No. 22) to the desired positions. Re-insert and
tighten the Adjustment Knobs (No. 20) to secure the posts in place.

9
23
24
25
27
26
20
28
22
STEP 4:
Loosen and remove the Adjustment Knob (No. 20). Next, insert the Seat Slider (No.
27) into the Saddle Post (No. 28) and adjust it to the desired position. Re-insert and
tighten Adjustment Knob (No. 20) to secure the seat slider in place.
Attach the Saddle (No. 26) to the Seat Slider (No. 27), tighten and secure with
Spanner (No. 12).
Attach the Handlebar (No. 23) to the Handlebar Post (No. 22) using 2 Screws (No.
24) and 2 Washers (No. 25), tighten and secure with Allen Wrench (No. 11).

10
31
32
1
#32 d5*Φ10*1 2PCS
#33 M5*12*Φ8.5 2PCS
33
STEP 5:
Attach the Water Bottle Holder (No. 31) to the Main Frame (No. 1) using 2 Screws
(No. 33) and 2 Washers (No. 32). Tighten and secure with Spanner (No. 12).
The assembly is complete!

11
ADJUSTMENTS
3
4
S17
ADJUSTING THE BALANCE:
In order to achieve a smooth and comfortable exercise during use, you must ensure that
the stability of the bike is correct. If during use you notice that the bike is unbalanced
you may adjust the foot pads located beneath the front and rear stabilizers. To do so,
use the Spanner (No. 12) to loosen the Nut (No. 3) by turning it clockwise (direction A).
With the nut loosened, rotate the Foot Pad (No. 4) until it sits level with the surface that
the bike is on. When you have finished adjusting the foot pad, re-tighten the Nut (No. 3)
by turning it counter-clockwise (direction B) using Spanner (No. 12). If required, repeat
this process to adjust the remaining foot pads.

12
RESISTANCE & BREAKING
71
69
You may adjust the tension level of the bike by rotating the Tension Control Knob (No.
71). To increase the level of resistance, rotate the control knob clockwise,to decrease
the level of resistance, rotate the control knob counter-clockwise.
During an exercise, users may stop the bike immediately by pushing down on the Brake
Handle (No. 69).This is the emergency brake.

13
BELT ADJUSTMENTS
Remove the End Cap (No. 75) from the Outer Chain Cover (No. 46) as indicated
above in Figure A.
Unscrew Nuts (No. 57) from both sides of the Flywheel (No. 59) using the Cylinder
Allen Wrench S19 as indicated above in Figure B.
Unscrew 2 Screws (No. 44) using the Spanner (No. 12) and remove the Front Cover
(No. 38) as indicated above in Figure C.
Secure Nuts (No. 53) onto both sides of the Flywheel (No. 59) using Cylinder Allen
Wrench S13 as shown in Figure D. Tighten simultaneously, and while tightening,
check the Belt (No. 43) to ensure that it’s secured and that it does not slip. Finally,
ensure that the Flywheel (No. 59) is centered correctly and that there isn’t any
deflection when it is in motion.
Tighten Nuts (No. 57) into both sides of the Flywheel (No. 59) using Cylinder Allen
Wrench S19. Next, secure the Front Cover (No. 38) to the Outer Chain Cover (No.
46) using 2 Screws (No. 44 and attach End Cap (No. 75) to the Outer Chain Cover
(No. 46).
NOTE: Tools S19 & S13 (Cylinder Allen Wrenches) are not included.
75
46
a
d
53
S13
44
b
S19
57
59
59