Sunny SF-B1735 User manual

44 LBS FLYWHEEL BELT DRIVE
COMMERCIAL INDOOR CYCLING
BIKE
SF-B1735
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 300 pounds (135 KG).
10.The 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.

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EXPLODED DIAGRAM 1

3
EXPLODED DIAGRAM 2
HARDWARE PACKAGE

4
PARTS LIST
No. Description Spec. QTY
.
No. Description Spec. QTY.
A01 Main Frame 1 C09 Foot Pad 4
A02 Front Stabilizer 1 C10 Tension Control Knob 1
A03 Rear Stabilizer 1 C11 Cow Leather Pad 1
A04 Seat Post 1 C12 EVA Pad 1
A05 Seat Slider Tube 1 C13 Bushing 1
A06 Handlebar 1 C14 T Shape Knob 1 1
A07 Adjusting Screw 2 C15 T Shape Knob 2 2
A08 Shipping Front Tube 1 C16
L/R Pedal 2
A09 Shipping Rear Tube 1 C17 Seat 1
B01 Middle Axle 1 C18 Computer Bracket 1
B02 Belt Wheel 1 C18a Bolt M4*15*Φ7 1
B03
L/R Crank Arm 2 C18b Nut M4 1
B04 Brake Block 1 C19 Grommet Φ12.5 6
B05 Spring 1 C20 Grommet Φ16.5 1
B06 Square Nut 1 C21 Belt 3PL1320 1
B07 Spring Piece 1 D01 Bolt M5*16*Φ8.5 4
B08 Inertial Wheel 1 D02 Flat Washer D5*Φ10*1.0 2
B09 Inertial Axle 1 D03 Bolt M6*12*S5 2
B10 Septum 1 D04 Bolt M10*16*S6 4
B11 Septum 1 D05 Bolt M10*25*S6 4
B12 Bearing 6202-2RZ NBK 3 D06 Flat Washer D10*Φ20*2.0 8
B13 Bearing 6205-2RS NBK 2 D07 Rivet M5*H13*Φ7 2
B14 Bottle Holder 1 D08 Nut M10*H7*S17 5
B15 Screw Φ7.8*30*M6*15*S5 2 D09 Nut M6*H14*S10 1
B16 Spanner S13-14-15 1 D10 Bolt M5*20*Φ8.5 2
B17 Allen Wrench S6 1 D11 Nut M5*H4*S8 1
B18 Spanner S10-13-17-19 1 D12 Nut M5*H9*S8 1
B19 Stainless Steel Board 1 D13 Big Flat Washer D6*Φ12*1.2 3
B20 Bearing 608ZZ 4 D14 Bolt M5*12 1
B21 Brake Rod 1 D15 Bolt M6*12*S10 2
C01 Outer Chain Cover 1 D16 Screw ST4.2*19 2
C02 Inner Chain Cover 1 D17 Screw ST4.2*19 2
C03 Blanking Plate 1 D18 Screw ST4.2*16 4
C04 Bushing 2 D19 Circlip D52 1
C05 Bushing 1 D20 Circlip D25 2
C06 End Cap 1 D21 Wave Washer D25*Φ34*0.3 1
C07 Cover for Middle Axle 1 D22 Nut M12*1*H19.5*S19 2
C08 Transportation Wheel 2 D23 Big Flat Washer D12*Φ24*2.0 2

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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 [e-mail] or 1- 877 - 90SUNNY (877-907-8669).
No. Description Spec. QTY. No. Description Spec. QTY.
D24 Nut M12*1*H6*S19 2E01 Computer 1
D25 Nut 3E01a Computer Wire a 1
D26 Nut M8*H7.5*S13 2 E01b Computer Wire b 1
D27 Nut M8*H5.5*S14 1 E02 Handle Pulse Wire 1
D28L/R Nylon Nut 9/16"-20*H8*S19 2 E03 Sensor 1
D29 Bolt M8*16 *S6 2 E04 Trunk Wire 1
D30 Screw ST4.2*19 8 E05 Sensor Wire 1
D31 Bolt M10*16*S6 4 E06 Handle Pulse Sensor 2
E07 Magnetic 1

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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).
STEP 1:
Unscrew the 4 Bolts (No. D04)with Allen Wrench
(No. B17)and remove the 4 Flat Washers (No.
D06)from the Shipping Front Tube (No. A08)
and Shipping Rear Tube (No. A09).
You may save these Bolts (No. D04), Flat
Washers (No. D06), Shipping Front Tube (No.
A08) and the Shipping Rear Tube (No. A09) in
case you would like to repackage and transport
this equipment in the future.
STEP 2:
Attach the Front & Rear Stabilizers (No. A02 &
No. A03) to the Main Frame (No. A01) using 4
Bolts (No. D05) and 4 Flat Washers (No. D06).
Tighten and secure with Allen Wrench (No. B17).

7
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).
STEP 3:
WARNING!
Read instructions carefully as
improper
assembly may cause permanent
damage to your bike.
Remove the preassembled 2 Bolts (No. D01)and
2 Flat Washers (No. D02) from the Main Frame
(No. A01)using Spanner (No. B16). Attach the
Bottle Holder (No. B14)to the Main Frame (No.
A01)using the 2 Bolts (No. D01)and 2 Flat
Washers (No. D02)that were removed. Tighten
and secure with Spanner (No. B16).
Remove the 2 Nylon Nuts (No. D28L/R) located
on the Pedals (No. C16L/R). Align the Left Pedal
(No. C16L) with the Left Crank Arm (No. B03L)
at 90°. Screw the Left Pedal (No. C16L)
counter-clockwise into its corresponding Left
Crank Arm (No. B03L). Once screwed in place,
use the Spanner (No. B16)to hold the bolt of the
pedal, then screw Left Nylon Nut (No. D28L)
clockwise into the thread end of the
Left Pedal
(No. C16L). Secure with Spanner (No. B18).
Align the Right Pedal (No. C16R) with the Right
Crank Arm (No. B03R) at 90°. Screw the Right
Pedal (No. C16R) clockwise into its corresponding
Right Crank Arm (No. B03R). Once screwed in
place, use the Spanner (No. B16)to hold the bolt
of the pedal, then screw Right Nylon Nut (No.
D28R) counter-clockwise into the thread end of
the Right Pedal (No. C16R)
. Secure with
Spanner (No. B18).

8
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).
STEP 4:
Loosen and pull out the [seat] T Shape Knob 2
(No. C15). Insert the Seat Post (No. A04) into the
tube located on the back of the Main Frame (No.
A01). Adjust the Seat Post (No. A04) to the
desired height then secure it in place by reinserting
and tightening the T Shape Knob 2 (No. C15).
Loosen and pull out the T Shape Knob 1 (No.
C14).Insert the Seat Slider Tube (No. A05) into
the Seat Post (No. A04). Adjust the Seat Slider
Tube (No. A05)
to the desired position then
secure it in place by reinserting and tightening the
T Shape Knob 1 (No. C14).
Secure Seat (No. C17) to Seat Slider Tube (No.
A05) with Spanner (No. B16).
STEP 5:
Loosen and pull out the [handlebar]
T Shape
Knob 2 (No. C15). Insert the Handlebar (No.
A06) into the tube located on the front of the Main
Frame (No. A01). Adjust the Handlebar (No.
A06) to the desired height
then secure it in place
by reinserting and tightening the T Shape Knob 2
(No. C15).

9
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).
STEP 6:
Attach Computer (No. E01) onto the Computer
Bracket (No. C18) located on the Handlebar (No.
A06).
Connect the Computer Wire a (No. E01a) with the
Sensor Wire (No. E05). Connect the Handle
Pulse Wire (No. E02) with Computer Wire b (No.
E01b).Connect the Sensor Wire (No. E05) with
the Trunk Wire (No. E04).
Adjust Computer (No. E01) to the desired angle
then secure it in place with the preassembled Bolt
(No. C18a) by Spanner (No. B16).
The assembly is complete!

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ADJUSTMENTS GUIDE
ADJUSTING THE HEIGHT AND BALANCE
In order to achieve a smooth and comfortable ride, you must
ensure that the stability of the bike is secured. If you notice that the
bike is unbalanced during use, you should adjust the Foot Pads
(No. C09)located beneath the Front &Rear Stabilizers (No. A02
& No. A03)of the bike. To do so, use Spanner (No. B18)to loosen
Nut (No. D08)by turning it clockwise
(direction A). With the nut
loosened, rotate the Foot Pads (No. C09)until it sits level with the
surface that the bike is on. When you have finished adjusting the
Foot Pads (No. C09), use Spanner (No. B18)to re-tighten the
Nut (No. D08)by turning it counter-clockwise
(direction B). If
required, repeat this process to adjust the remaining Foot Pads
(No. C09).
ADJUSTING THE SEAT
The seat of this bike is fully adjustable as it moves Up, Down, Fore
(forward), Aft (backward).
To adjust the height of the Seat Post (No. A04)
, loosen and pull
the [seat] T Shape Knob 2 (No. C15)outward, then raise or lower
the seat to the desired height. Once adjusted, re-insert and tighten
the T Shape Knob 2 (No. C15)to secure the seat in place.
To adjust the seat back and forth, loosen and pull T Shape Knob 1
(No. C14)outward, then slide the Seat Slider Tube (No. A05)to
the desired position. Once positioned, re-insert and tighten the T
Shape Knob 1 (No. C14)to secure the seat slider tube in place.
ADJUSTING THE HANDLEBAR
It is important that the handlebar and seat are both set to the
correct height to your body. To adjust the handlebar height, loosen
and pull the [handlebar] T Shape Knob 2 (No. C15) outward, then
slide the Handlebar (No. A06)
up or down to the desired height.
Once adjusted, re-insert and tighten the
T Shape Knob 2 (No.
C15)to secure the handlebar in place.

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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. Then
insert the strap back into the hoop of the toe clip. Repeat this
process to secure your other foot.
ADJUSTING THE RESISTANCE
Adjust the resistance of the bike using the Tension Control Knob
(No. C10). Increase the level of resistance by turning the Tension
Control Knob (No. C10)to the RIGHT (clockwise),
decrease the
level of resistance by turning the Tension Control Knob (No.C10)
to the LEFT (counter-clockwise).
EMERGENCY BRAKE
During use, users can stop the bike completely by pushing down on
the Tension Control Knob (No. C10)
. Pushing down on the
Tension Control Knob (No. C10)
will enforce the brake and bring
the bike to an immediate stop.
TRANSPORTING THE BIKE
To move the bike, first ensure that the Handlebar (No. A06) is
properly secured. If the handlebar is loose, tighten the [handlebar] T
Shape Knob 2 (No. C15)
to secure it. Next, stand at the front of the
bike so that you’re directly in front of the handlebar. Firmly grasp
and hold each side of the handlebar, place one foot on the Front
Stabilizer (No. A02)
and tilt the bike towards you until the
Transportation Wheels (No. C08) on the
Front Stabilizer (No.
A02) touch the ground. With the Transportation Wheels (No. C08)
on the ground, you can transport the bike to the d
esired location
with ease.
NOTE:
When moving the bike, always use caution as unexpected
impact, such as dropping the bike, may cause injury and affect the
bike’s operation.
DISMOUNTING
For your safety, it is recommended that you never attempt to dismount or remove your feet from the
pedals until both the flywheel and pedals/cranks have come to a complete stop. Failure to follow
this recommendation may lead to loss of control and/or serious injury.
Here are a few examples of how to safely dismount the bike:
1. Reduce the pedal speed until the pedals/crank come to a complete stop.
2. Increase the resistance until the pedals/crank come to a complete stop.
3. Push and hold the Tension Control Knob (No. C10)
down until the pedals/crank come to a
complete stop.

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REMOVING THE CRANK ARM
TO REMOVE THE CRANK ARM
Unscrew 2 Bolts (No. D29) counter-clockwise with the Allen Wrench (No. B17). Remove
the 2 Bolts (No. D29)and pull out the Left &Right Crank Arms (No. B03L/R).
NOTE: The hexagonal hole on the middle axle and the crank arm should be aligned when
assembling.
TO REASSEMBLE THE CRANK ARM
Attach the Left & Right Crank Arms (No. B03L/R) to the middle axle. Attach the 2 Bolts
(No. D29)onto the hexagonal hole of the Left & Right Crank Arms (No. B03L/R) and
secure it by turning clockwise with Allen Wrench (No. B17).

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SPD TECHNICAL SERVICE INSTRUCTIONS
Caution!
Before use, read these instructions carefully.
Practice engaging and disengaging from the pedals several times in a stationary position before
riding.
Before using, lubricate the concave area of the clip.
Keep the cleat and pedal clean to ensure proper usage.
Before using, adjust the retention force of the pedal to suit your needs.
Note:
1. After tightening the cleat, practice engaging and releasing one shoe at a time.
2. Check your pedals every time before you ride the bike.
3. When the pedal starts to wear on the axle, it will not function properly. We recommend you
replace the entire pedal.
USE
Engaging Disengaging
Press the cleat into the pedal. Remove by twisting your heel to the outside.
ADJUSTING THE SPRING TENSION OF THE BINDING
The tension of the spring is adjusted for each pedal (top & bottom) with the adjustment bolt in the
rear using 3mm Allen Wrench.
Turn the bolt using 3mm Allen Wrench in a clockwise direction to increase retention force, and in a
counter-clockwise direction to decrease retention force.
3mm Allen Wrench
Increase
Decrease

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EXERCISE COMPUTER
FUNCTION BUTTONS
MODE:
Press to select the function displayed or enter value during setting mode.
Press and hold for 2 seconds to enter the RACE mode interface during
STOP mode.
SET:
To set up the target value of TARGET, TIME, DIST, CAL.
Press the button and hold for 2 seconds to speed up the increment during
stop mode.
RESET:
Press the button to reset function value during setting mode.
Press the button and hold for 2 seconds to reset all value to zero.
(When the user replaces the batteries, all values will reset to zero.)
FUNCTIONS:
SPEED: Displays the speed from 0 to 99.9 KPH or MPH.
AVG SPEED: Displays the average speed only in STOP mode.
MAX SPEED: Displays the maximum speed only in STOP mode.
CADENCE (RPM): Displays the frequency per minute from 0 to 999.
AVG CADENCE (AVG RPM): Displays the average cadence (RPM) in STOP mode.
MAX CADENCE (MAX RPM): Displays the maximum cadence (RPM) in STOP mode.
DISTANCE (DIST): Accumulates total distance from 0.0 to 999.9 KM or Miles. User can preset
TARGET DISTANCE by pressing MODE & SET.
TARGET DISTANCE (TGT DIST):Users can preset the Distance in the TARGET mode.
CALORIES (CAL):Accumulate total calories from 0.0 to 9999. User can preset target calories.
RACE: Exercise in the TARGET mode.
TIME: Accumulates total time from 00:00 to 99:59. User can preset target Time.
TARGET TIME: Users can preset the Time in the TARGET mode.
PULSE: Display the current pulse rate.
MILES OR KILOMETERS SETTING:
The default setting is miles. Press and hold SET and MODE together for 2 seconds to change to
kilometers.
SET TARGET VALUES:
1. Press SET to select a target value. CADENCE will start to flash.
2. Press and hold SET and the value will increase continuously.
3. Press MODE to enter.
4. TIME will flash.
5. Press SET to select a value.
6. Press MODE to enter.
7. Repeat to select values for DIST and CAL.

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1. TARGET: the preset CADENCE.
2. In STOP mode, press SET key to enter the TARGET setting in STOP mode. Press SET to
increase the CADENCE five at a time. The setting change is 15 →20→……110→115→120→15
→20→……→115→120→15 →20→……
3. The setting range of 15 -120 (Preset value is 60 CADENCES which equals six bars).
4. Each bar equals 10 CADENCE. Total is 12 bars.
When Current CADENCE is less than Target CADENCE, the up arrow next to the bicycle will be
displayed.
Each arrow equals 10 CADENCES (1-10 CADENCES displays one arrow,
11-20 displays two). The maximum arrows displayed is 12.
This down arrow next to the bicycle icon will be displayed when the current
CADENCE is more than the TARGET CADENCE. The bicycle icon will be displayed during exercise
mode.
RACE MODE:
Press and hold MODE for 2 seconds to enter RACE mode.
In RACE mode, only TIME and DIST can be set.
Default values for 10 minutes / 4 (KM or Miles).
Total is 10 bars.
PULSE:
To measure the pulse, press MODE until computer is on the PULSE function. Hold the hand pulse
sensors for at least 5 seconds to measure your pulse. This value is for reference only. It cannot be
used as the basis for medical treatment.
BATTERY: This computer uses two AAA batteries. If the display appears incorrectly or becomes
difficult to read, please install new batteries. 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.

16
MAINTENANCE INSTRUCTIONS
This is general information for daily, weekly and monthly maintenance to be performed on your bike.
DAILY MAINTENANCE
After each exercise session, wipe down all the
equi
pment: seat, frame, and handlebars. Pay
special attention to the seat post, handlebar
post, and belt/chain guard. Sweat is very
corrosive and may cause problems that require
parts replacement later.
1. Get on the bike and engage the drive train.
2. Pay attention
to any vibrations felt through
the pedals. If you feel any vibrations, you
may need to tighten the pedals, bottom
bracket, or adjust the drive belt/chain
tension.
3.
Use a wrench to tighten the pedals until
they are secure.
MONTHLY MAINTENANCE
1. Check if all
hardware is secure, such as: water
bottle holder, flywheel nuts, belt/chain guard
bolts, brake caliper lock nuts and brake caliper
tension rod nuts.
2.
Inspect the brake tension rod for signs of wear
such as missing threads. Clean and lubricate
the brake tension rod.
3.
Clean and lubricate the seat post, handlebar
post and seat slider. Remove any buildup of
foreign material.
WEEKLY MAINTENANCE
1.
Inspect moving parts and tighten the
hardware.
2. Inspect pull pin frame fittings to make sure
the fittings are secured. Loose frame fittings
may strip out threads over time and cause
extensive damage.
3.
Clean and lubricate pop pin assemblies.
Pull on the pin and spray a small amount of
lubricant onto the shaft.
4. Tighten the seat hardware to make sure the
seat is level and centered.
5.
Brush and treat the resistance pads.
Remove any foreign material that may have
collected on the pads. Spray the pads with
silicone lubricant. This helps to reduce
noise from friction between the pads and
the flywheel.
6. Visually inspect the bottom b
racket, toe
clips and toe straps. If any of them are
loose or disconnected, attach and tighten.
LEATHER BRAKE PAD CARE (If Applicable)
1.
Perform this maintenance when the brake pad
is first installed and for the life of the brake pad.
Following these simpl
e guidelines can increase
the life of your brake pads.
2. Some brake pad assemblies are pre-lubricated.
Squeeze the brake pad. If lubricant is released,
then the pad has been pre-lubricated.
3.
If the brake pad is dry, then coat the brake pad
with 3-n-1 oil. Bru
sh the leather with a clean,
wire bristle brush, and then apply the oil. The oil
should be allowed to soak into the pad. Repeat
4-
5 times until the pad is saturated, but not
dripping with oil. When the pad is saturated, it
will no longer absorb oil.
4. Inspec
t the brake pad weekly and lubricate if
needed. The pad should not have a glazed
appearance. If the pad appears glazed, then
brush it with wire brush and apply lubricant as
needed. If any of the sponge padding is
showing through the leather pad, the brake pad
should be replaced.
NOTE: If you are unable to resolve an issue using the troubleshooting guide above, please
contact Customer Service at [e-mail].
Version: 2.1