
BRT5800/BRT3980
OWNER’S MANUAL
This product is intended for indoor, home use only and is not to be used in a commercial setting.
U.S. Patent number US9474925B1

This page is left blank intentionally

BRT5800/3980 Page 1
PLEASE KEEP THESE INSTRUCTIONS FOR FUTURE USE & REFERENCE.
DO NOT DISCARD.
WARNING: SERIOUS INJURIES AND EVEN DEATH CAN OCCUR IF THE PROPER SAFETY PRECAUTIONS
ARE NOT FOLLOWED.
The diagram below highlights and reviews many of the important Safety and Warning labels also found on the unit.
Please ensure any user of the unit familiarizes themselves with this Safety and Warning guidelines before use.

BRT5800/3980 Page 2
Before you undertake any exercise program, please be sure to
consult with your doctor.
Frequent strenuous exercise should be approved by your
doctor and proper use of your product is essential.
Excessive or incorrect training may result in health injuries.
Please read this manual carefully before commencing the
assembly of your product or starting to exercise.
• Please keep all children away from this item when in use.
Do not allow children to climb or play on this item when it
is not in use.
• Supervise teenagers while they use this unit.
• For your own safety, always ensure that there are at least
3 feet of free space in all directions around your product
while you are exercising.
• Regularly check to see that all nuts, bolts and ttings are
securely tightened. Periodically check all moving parts for
obvious signs of wear or damage.
• Any adjustment devices that could interfere with the user’s
movement of this unit should not be left projecting.
• Clean only with a damp cloth, do not use solvent
cleaners. Lubricate the moving parts of your unit every 30
days with a silicone-based grease or product.
If you are in any doubt, do not use your product; contact
CUSTOMER SUPPORT.
• Before use, always ensure that your product is positioned
on a solid, hard-at surface.
• Do not place on carpet. If necessary, use a rubber mat
underneath to reduce the possibility of slipping.
• Always wear appropriate clothing and footwear such as
training shoes when exercising. Do not wear loose clothing
that could become caught in moving parts during exercise.
• Do not use this unit if it is not functioning properly or if it is
not fully assembled.
• Do not use this unit for commercial purposes. This unit is
for home use only.
• Before use, you must read and understand all instructions
& warnings stated in this Owner’s Manual as well as
posted on the equipment.
• It is the facility owner’s responsibility to properly instruct
users on the proper operation of the equipment and to
warn them of the potential hazards.
• If at any time during exercise you feel faint, dizzy or
experience pain, stop and consult your physician.
Your product is intended for use in clean dry conditions. You
should avoid storage in excessively cold or damp places as
this may lead to corrosion and other related problems.
If you have any questions concerning the assembly of your
item or if any parts are missing, please DO NOT RETURN
THE ITEM TO THE STORE OR CONTACT THE
RETAILER.
Our dedicated customer service sta can help you with
any questions you may have regarding the assembly of this
unit and can also mail you replacement parts.
Customer Support is open 9:00 a.m. to 5:00 p.m. (Pacic
Time) Monday through Friday.
Please contact us by any of the following means :
Body Flex Sports, Inc.
21717 Ferrero Parkway, Walnut, CA 91789
Telephone: 1 (888) 266 - 6789
Fax: 1 (909) 598 - 6707
Email: infor@bodyexsports.com
Body Flex Sport warrants your product is free of any defects in
workmanship and materials for a period of 1 year for the frame
and 90 days on all parts if the item is used for the
intended purpose, properly maintained and not used
commercially.
Any alterations or incorrect assembly of the product will void
this warranty.
Proof of purchase must be presented for any warranty
validation (no exceptions). This warranty applies to the original
purchaser only and is not transferable.
This warranty covers parts damaged due to defect in work-
manship and materials; it does not cover abuse or damages
caused during use, storage or assembly. During the warranty
period, Body Flex Sport reserves the right to:
1. provide replacement parts to the purchaser in an eort to
repair the item.
2. repair the product returned to our warehouse
(at purchaser’s cost).
3. replace the product if neither of the two previously
- Ruler with both Metric and English measurements
- 2 x Adjustable Wrenches
- 1 x Philips (”Crosshead”) Screw Driver
Your product is suitable for users weighing:
250 pounds or less
General Information
Safety Storage and Use
Questions
Customer Support
Warranty
Assembling Tools
Weight Limit

BRT5800/3980 Page 3
Before Assembly
1. Take a few minutes to familiarize yourself with the parts and hardware included with your product.
2. The assembly may require two people.
3. Check the frame for any damage and check any wiring (if present) for rips or tears. If you detect damage, rips, or
tears, please contact our Customer Support Team before beginning any assembly.
4. Make sure all the hardware needed is included.
5. It is very important to follow the assembly instructions correctly and to make sure all parts are attached correctly and
rmly tightened when the assembly process is complete.
6. Parts that are not tightened correctly will seem loose and can cause irritating noises and will cause damage to the
equipment.
1. It is only necessary to tighten the bolts and nuts to “nger tight” during the assembly process. This will make it
easier to complete certain steps by allowing more tolerance for all the parts to t properly.
2. Do not tighten all the nuts onto the bolts securely until after you have completed assembly of your product.
3. Use wrenches, pliers, or ratchet and sockets to tighten the bolts and nuts.
4. The Nylon Nut should thread onto the Hex Bolt until the end of the Hex Bolt has passed through the Nylon insert
inside the Nut. Please follow this guideline every time you see this Nylon Nut icon throughout the assembly steps.
Nylon Lock Safety Nuts
Tools Required For Assembly
WARNING
PLEASE NOTE : Many of the parts and hardwares listed on the parts list are already pre-assembled or
installed on the unit.
Tool Description/Purpose
Ruler (with both Metric and English measurements)
QTY: 1
Use to measure the length or size of hardware including
bolts to ensure you are using the correct part.
Adjustable or at wrenches
QTY: 2
Use to securely install parts including nuts and bolts.

BRT5800/3980 Page 4
Part Listing
The following parts list describes all of the parts illustrated in the exploded diagram on the following page.
PLEASE NOTE: most of these parts are already pre-assembled on your unit.
# Description
01 Main Frame
02A
03 Left Pedal Tube
04 Right Pedal Tube
05 left Couple Bar
06 Right Coupler Bar
07 Backrest Cushio
n Tube
08 Seat Cushion Tube
09 Seat Post
10 Rear Handle Bar
11 Left Handle Bar
12 Right Handle Bar
13 Pulse Handle Bar
14 Front Stabilizer
15 Rear Stabilizer
16 Pedal Connect Joint
17 U Bracket
18 Crank
19 Couple Bar Axle
20 Cariage Bolt(M8x70 mm)
21 Pedal Hinge Bolt (φ16x21"x97 mm)
22 Bolt (M10x58 mm)
23 Hex Bolt (M8x105 mm)
24 Tool 1
25 Bolt (M8x45 mm)
26 Hex Bolt (M8x45 mm)
27 Hex Bolt (M8x40 mm)
28 Hex Bolt (M8x20 mm)
29 Bolt (M8x30 mm)
30 Bolt (M8x20 mm)
31 Bolt (M8x15 mm)
82
33 Screw (M4x25 mm)
34 Cap Nut (M8)
35 Nylon Nut (1/2")
36 Nylon Nut (M10)
37 Nylon Nut (M8)
38 Washer (M10)
39 Arc Washer (M8)
40 Washer (M8)
# Description
41 Spring Washer (M8)
42 D Shape Washer (19 mm)
43 Wavy Washer (ID 19 mm)
44 Wavy Washer (ID 16 mm)
45 Bushing
46 Spring Loaded Knob (M16)
47 Knob Bolt (M8)
48 Lock Knob (M10)
49 Pop-pin
79
51 Pulse Sensor Wire
80
81
54 Adapter
55 Left Pedal
56 Right Pedal
57 Left Foot Pedal
58 Right Foot Pedal
59 Mat
60 End Cap for Front Stabilizer (φ60 mm)
61 End Cap for Rear Stabilizer (φ60 mm)
62 Round Cap (φ32 mm)
63 Plastic Bushing (φ32 mm)
64 Plastic Bushing
65 Main Frame Sleeve
66 Round End Cap (φ30 mm)
67 Round End Cap (φ25 mm)
68 Round End Cap (φ22 mm)
69 Rectangular End Cap (25x40 mm)
70 Rectangular End Cap (25x50 mm)
71 Square End Cap (38 mm)
72
73 Rear Handle Bar Foam Grip
74 Pulse Handle Bar Foam Grip
75 Backrest Cushion
76 Seat Cushion
77 Tool 2
Handle Bar Foam Grip
Center Post
Monitor
Main Sensor Wire (Upper)
Main Sensor Wire (Lower)
Washer (M4)
78
Washer (M10)
83
Screw (M4x12 mm)

BRT5800/3980 Page 5
Exploded View
The following diagram is provided to help you familiarize yourself with the parts and hardware that will be used during the
assembly process.
: : Not all of the parts and hardware you see here will be used while you are assembling the machine
because some of these items are already pre-installed. Please use this page only as a reference guide for parts and
hardware.
PLEASE NOTE
02A
83

BRT5800/3980 Page
6
Hardware and Tool List
Bolts
Washers
Nuts
Others
Tools (Included)
The following hardware is used to assemble your unit. Please take a moment to familiarize yourself with these items.
PLEASE NOTE: Most of these parts are already pre-assembled on your unit. Do not be alarmed if you see parts on this
page that are not included in your hardware packet.
#41 Spring Washer (M8)
[12 pieces]
[6 pieces pre-assembled]
#43 Wavy Washer (Ø19mm)
[2 pieces]
#21 Pedal Hinge Bolt (1/2" x 97mm)
[2 pieces]
#23 Hex Bolt (M8 x 105mm)
[2 pieces]
#28 Hex Bolt (M8 x 20mm)
[2 pieces]
#29 Bolt (M8 x 30mm)
[2 pieces]
#30 Bolt (M8 x 20mm)
[2 pieces]
#31 Bolt (M8 x 15mm)
[10 pieces]
[6 pieces pre-assembled]
#26 Hex Bolt (M8 x 45mm)
[2 pieces]
#25 Bolt (M8 x 45mm)
[2 pieces]
#27 Hex Bo
lt (M8 x 40mm)
[6 pieces]
#20 Carr
iage Bolt (M8 x 70mm)
[4 pieces]
#22 Bolt (M10 x 58mm)
[2 pieces]
#83 Screw (M4 x 12mm)
[4 pieces pre-assembled]
#44 Wavy Washer (Ø16mm)
[12 pieces]
#42 D Sh
ape Washer (19mm)
[2 pieces]
#38 Washer (M10)
[2 pieces]
#40 Washer (M8)
[18 pieces]
#34 Cap Nut (M8)
[4 pieces]
#24 Tool 1 (5mm)
[2 pieces]
#77 Tool 2
[2 pieces]
#47 Knob Bolt (M8) #48 Lock Knob (M10)
[2 pieces pre-assembled]
#62 Round Cap
[2 pieces]
#35 Nylo
n Nut (1/2")
[2 pieces]
#36 Nylon Nut (M10)
[2 pieces]
#37 Nylon Nut (M8)
[10 pieces]
#39 Arc Washer (M8)
[12 pieces]
[6 pieces pre-assembled]
#49 Pop Pin
[2 pieces]
#46 Spring Loaded Knob
(M16)
[2 pieces]
[1 piece]
#78 Washer (M10)
[2 pieces pre-assembled]
#82 Washer (M4)
[4 pieces pre-assembled]

BRT5800/3980 Page 7
Assembly STEP 1
REAR STABILIZER ASSEMBLY
Secure the Rear Stabilizer (#15) to the Main Frame (#01) using
two Carriage Bolts (#20) followed by two Arc Washers (#39), two
Spring Washers (#41), and two Cap Nuts (#34).
FRONT STABILIZER ASSEMBLY
Secure the Front Stabilizer (#14) to the Main Frame (#01) using
two Carriage Bolts (#20) followed by two Arc Washers (#39), two
Spring Washers (#41), and two Cap Nuts (#34).
Please Note that the Front Stabilizer (#14) has end caps that spin
for ease of relocating the unit and the Rear Stabilizer (#15) has
height adjustable end caps for leveling of the unit.
Hardware Required
Front Roller
NOTE BEFORE STARTING THE ASSEMBLY PROCESS :
To avoid misalignment due to over-tightening, please do not use a
wrench and use only hand-tightening for now to ensure
easy assembly.
Wrench-tightening should be performed after all parts are assembled
to ensure all nuts, bolts, and parts are tightly secured before use.
#41 Spring Washer (M8)
[4 pieces]
#20 Carriage Bolt (M8 x 70mm)
[4 pieces]
#34 Cap Nut (M8)
[4 pieces]
#39 Arc Washer (M8)
[4 pieces]

BRT5800/3980 Page 8
Assembly STEP 2
Connect the Main Sensor Wire (Lower)(#) to the Main
Sensor Wire (Upper) (#).
Remove the Bolts (#31), Spring Washers (#41) and Arc
Washers (#39) that are pre-assembled on the Main Frame
(#01) and set them aside as they will be used later in this step.
Being careful not to pinch any wires, slide the Center Post
(#02$) onto the Main Frame (#01) and secure it using the
previously removed six Bolts (#31), six Spring Washers (#41)
and six Arc Washers (#39) as shown in drawing below.
Hardware Required
02A
#41 Spring Washer (M8)
[6 pieces]
#39 Arc Washer (M8)
[6 pieces]
#31 Bolt (M8 x 15mm)
[6 pieces]

BRT5800/3980 Page 9
Assembly STEP 3
Hardware Required
Referring to the drawing below, insert the Couple Bar Axle (#19)
through the horizontal stems on the Center Post (#02$). Then, on the
left side of the Couple Bar Axle (#19) -- in the following order, slide
on: one Wavy Washer (#43) followed by the Left Coupler Bar (#05),
one D Shape Washer (#42), one Round Cap (#62), one Washer
(#40), and secure using one Bolt (#30).
On the opposite side of the Axle (#19), assemble -- in the following
order: one Wavy Washer (#43) followed by the Right Coupler Bar
(#06), one D Shape Washer (#42), one Round Cap (#62),
one Washer (#40), and secure using one Bolt (#30).
#43 Wavy Washer (Ø19mm)
[2 pieces]
#30 Bolt (M8 x 20mm)
[2 pieces]
#42 D Shape Washer (19mm)
[2 pieces]
#40 Washer (M8)
[2 pieces]
#62 Round Cap
[2 pieces]
02A

BRT5800/3980 Page 10
Assembly STEP 4
Hardware Required
Using the drawings as a reference, attach the free end of the bottom
of the Right Coupler Bar (#06) to the front of the Right Pedal Tube
(#04) by aligning the holes. After the holes are aligned, insert one Bolt
(#22) through the Right Pedal Tube (#04), the Right Coupler Bar
(#06) and secure using one Washer (#38) followed by one Nylon Nut
(#36). Repeat this process on the other side using Left Coupler Bar
(#05) and Left Pedal Tube (#03).
Attach the Right Pedal Tube (#04) onto the Crank (#18) as illustrated
and secure by inserting from the outer edge of the Right Pedal Tube
(#04), one Pedal Hinge Bolt (#21) and one Wavy Washer (#44).
Secure from the inner edge (behind the Crank(#18)) with one Nylon
Nut (#35).
*** PLEASE DO NOT tighten the hardware until steps below have
been completed. This will allow you to align the holes for proper and
smooth assembl
y.***
Repeat this process on the other side using the Left Pedal Tube
(#03).
#21 Pedal Hinge Bolt (1/2" x 97mm)
[2 pieces]
#22 Bolt (M10 x 58mm)
[2 pieces]
#44 Wavy Washer (Ø16mm)
[2 pieces]
#38 Washer (M10)
[2 pieces]
#35 Nylon Nut (1/2")
[2 pieces]
#36 Nylon Nut (M10)
[2 pieces]

BRT5800/3980 Page 11
Assembly STEP 5
Hardware Required
Attach the Left/Right Pedals (#55/#56) onto the Left/Right
Pedal Tubes (#03/#04) as shown in the drawing below using a
total of six Hex Bolts (#27), six Washers (#40), and six Nylon
Nuts (#37).
On the right side, attach the Right Foot Pedal (#58) to the
front of Right Pedal Tube (#04) using one Hex Bolt (#23)
through Pop-pin (#49) safety ring, and one Washer (#40) and
secure with one Washers (#40) and one Nylon Nut (#37).
Then insert a Pop-pin (#49) into the front hole of the Right
Foot Pedal (#58).
Repeat this process on the other side.
Note: Care should be used when mounting or dismounting the machine.
Before mounting or dismounting, move the pedal on the mounting or
dismounting side to its lowest position and bring the machine to a
complete stop. This unit is not equipped with a free-wheel. Pedal speed
should be reduced in a controlled manner.
Front Foot Pedal with 3 settings
#23 Hex Bolt (M8 x 105mm)
[2 pieces]
#27 Hex Bolt (M8 x 40mm)
[6 pieces]
#40 Washer (M8)
[10 pieces]
#37 Nylon Nut (M8)
[8 pieces]
#49 Pop Pin
[2 pieces]

BRT5800/3980 Page 12
Assembly STEP 6
Hardware Required
A. HANDLE BARS
On the left side, insert Left Handle Bar (#11) into the opening at
the tip of
Left Coupler Bar (#05). Align the holes of the
Left Handle Bar (#11) and Left Coupler Bar (#05)
and secure by
using one Knob Bolt (#47) through. Repeat this process on the
other side using Right Handle Bar (#12) and Right Coupler Bar
(#06).
B. PULSE HANDLE BARS
Install the
Pulse Handle Bar (#13) onto the front side of the
Center Post (#02A) as shown in the illustration below using two
Bolts (#29). Please ensure the Pulse Sensor Wire (#51) is free
and cl
ear, avoiding pinching it during this assembly step. You will
need to connect this wire to the Monitor (#79) late
C. COMPUTER
Remove the four Screws (#83) and four Washers (#82) that are
pre-assembled on the Monitor (#79)
. Set them aside as they will
be used later in this process. With the help of an assistant, connect
the Main Sensor Wire(Upper) (#80) to the corresponding wire on
the
Monitor (#79) as illustrated on diagram I.
Connect the Pulse Sensor Wire (#51) to the Monitor (#79)
by
inserting it into the back socket as illustrated on diagram II. Being
careful not to pinch/damage any of the wires, attach the Monitor
(#79) to the bracket on the Center Post (#02A) by using the four
Screws (#83) and four Wahsers (#82) that were previously
#29 Bolt (M8 x 30mm)
[2 pieces]
#83 Screw (M4 x 12mm)
[4 pieces]
#47 Knob Bolt (M8)
[2 pieces]
#82 Washer (M4)
[4 pieces]
A
B
C
I
II
02A
83
removed.

BRT5800/3980 Page
13
Assembly STEP 7
Hardware Required
Attach Backrest Cushion Tube (#07) to the Seat Cushion Tube
(#08) and secure by using two Hex Bolts (#28), two Spring Washers
(#41) and two Washers (#40).
With the help of an assistant, align the two holes of the Rear Handle
Bar (#10) to the holes on the Backrest Cushion Tube (#07) and
secure all using the two Hex Bolts (#26), followed by two Arc
Washers (#39), two Washers (#40) , and two Nylon Nuts (#37).
Slide the Seat Cushion Tube (#08) onto the trough of the Seat Post
(#09) as shown below. Secure using two Lock Knobs (#48) through
two Washers (#78).
then loosen the Spring Loaded Knob (#46) and pull back slightly on
it so that you may proceed to insert the
Seat Post (#09) assembly
into the opening of the post that is protruding from the Main Frame
(#01) down a minimum of four inches so that the corresp
onding holes
can engage. Screw in the Spring Loaded Knob (#46) through the
Main Frame (#01) and then through any one of the holes loca
ted on
the Seat Post (#09).
Note: The Spring Loaded Knob (#46) has a safety feature that
allows you to loosen it by turning it counter-clockwise three times
as you pull it outward. This knob can be loosened to adjust the seat
height. Adjust the seat height and then release the knob bac
k in.
Tighten the knob by turning clockwise.
#28 Hex Bolt (M8 x 20mm)
[2 pieces]
#26 Hex Bolt (M8 x 45mm)
[2 pieces]
#78 Washer (M10)
[2 pieces]
#39 Arc Washer (M8)
[2 pieces]
#41 Spring Washer (M8)
[2 pieces]
#40 Washer (M8)
[4 pieces]
#48 Lock Knob (M10)
[2 pieces]
#37 Nylon Nut (M8)
[2 pieces]
#46 Spring Loaded Knob (M16)
[1 piece]
Secure the Spring Loaded Knob (#46) to the Main Frame (#01),
Removed the two Washers (#78) and two Lock Knob (#48) that are
pre-assembled on the Seat Cushion Tube (#08). Set them aside as
they will be used later in this process.

BRT5800/3980 Page 14
Assembly STEP 8
Hardware Required
Attach the Seat Cushion (#76) to the horizontal bar of the
Seat Cushion Tube (#08) and secure from the bottom using
four Bolts (#31).Then, attach the Backrest Cushion (#75)
to the Backrest Cushion Tube (#07) and secure using two
Bolts (#25) through two Washers (#40).
#31 Bolt (M8 x 15mm)
[4 pieces]
#25 Bolt (M8 x 45mm)
[2 pieces]
#40 Washer (M8)
[2 pieces]

BRT5800/3980 Page 15
Assembly STEP 9
Hardware Required
THE ASSEMBLY PROCESS IS NOW COMPLETE.
However, for your own safety, please make sure to read this entire Owner’s Manual which
includes safety instructions and warnings, as well as any safety/warning labels axed to the
product before use. For your safety , please visually and functionally inspect and test the unit
after assembly is complete.
Plug in the Adapter (#54) male plug into the female socket
located at the rear end of the shroud and then plug in the
Adapter (#54) to the electrical outlet to start your workout
No Hardware Required
NOTE :
Please wrench-tightened all parts now that assembly is completed to
ensure all nuts, bolts, and parts are tightly secured before use.
NOTES (Regarding the Computer Monitor):
Warning: This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference.
(2) This device must accept any interference received, including interference that may cause undesired operation.
Caution:
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and
can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment o and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit dierent from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.

BRT5800/3980 Page 16
Computer Operation
The monitor is designed for programmable magnetic bikes and introduced with the following categories:
- Key Functions
- About Display
- Operating Ranges
- Things You Should Know Before Exercising
- Operation Instructions
FUNCTION KEYS (on the surface of the fitness monitor)
There are total 6 keys including START/STOP, ENTER, MODE, UP, DOWN, and TEST ( RECOVERY).
START/STOP: Start or stop the program chosen. And, reset the monitor by pressing and holding for 2 seconds.
ENTER: Choose the functions from PROGRAMS, GENDER, TIME, HEIGHT, WEIGHT, DISTANCE, CAL, WATT, TARGET HEART
RATE, AGE, and 10 columns. The chosen function will flash. Please note that not all the functions can be selected in every program
according to the types of each program.
MODE
: Change the displays of the values between RPM or SPEED, DISTorODOand CAL or WATT.
UP(▲): Select or increase the values of PROGRAMS, GENDER, TIME, HEIGHT, WEIGHT, DISTANCE, CAL, WATT, TARGET HEART
RATE, AGE, and 10 columns.
DOWN (▼): Select or decrease the values of PROGRAMS, GENDER, TIME, HEIGHT, WEIGHT, DISTANCE, CAL, WATT, TARGET
HEART RATE, AGE, and 10 columns.
TEST(RECOVERY): Start the function of PULSE RECOVERY.

BRT5800/3980 Page 17
Computer Operation
ABOUT DISPLAY
A. START: Indicate the selected program has started.
B. STOP: Indicate the selected program has stopped. And, users are free to change the programs and the value of functions applied.
C. PROGRAMI nnd: icate the selected programs from PROGRAM 1 to PROGRAM 17.
D. LEVEL n: Indicate the selected level of loading from LEVEL 1 to LEVEL 24.
E. GENDEIRnd: icate the selected gender (Male or Female).
F. TIME/HEIGHT/WEIGHT DisplaInyd: icate only one value of TIME, HEIGHT, or WEIGHT displayed depending on the programs.
G. RPM/SPEED/ Displa y :I ndicate only one value of RPM, SPEED, or MPH displayed depending on the programs.MPH
H. DISTANCE/FAT% Display: Indicate only one value of DISTANCE or FAT% displayed depending on the programs.
I. CAL/WATT/BMR Display: Indicate only one value of CAL, WATT, or BMR displayed depending on the programs.
J. TARGET H.R./BMI/AGE Display : Indicate only one value of TARGET HEART RATE. BMI or AGE displayed depending on the
programs.
K. HEART RATE/BODY TYPE Display: Indicate only one value of HEART RATE or BODY TYPE displayed depending
on the programs.
L. LOADING Profiles : There are 10 columns of loading bars and 12 bars in each column. Each column represents 3 minutes work
out (without the change of TIME value), and each bar represents 2 levels of loading.

BRT5800/3980 Page 18
Computer Operation
OPERATING RANGES
THINGS YOU SHOULD KNOW BEFORE EXERCISING
1. The values calculated or measured by the computer are for exercise purpose only, not for medical purpose.
2. The variables may be changed in different programs:
3. Programs Selection:
There are programs with 1 Recovery including 1 Manual Program, ,1 Body Fat Program, Heart Rate Control17 46 Preset Programs
Program , 1 Speeds 4 User Setting Programs,
Independent Program, and 1 Pulse Recovery Measuring.
4. Program Graph:
Each graph shown is the profile of the loading in each interval (column). With the value of TIME counting up, each interval is 3
minutes that all the columns make up 30 minutes. With the value of TIME counting down, each interval is the value of setup TIME
divided by 10. For example, if the time value is set up to 40 minutes, each interval will be 40 minutes divided by 10
intervals(40/10=4). Then, each interval will be 4 minutes. The following graphs are all the profiles in the monitor.
Value Range (Count Up) Count Down Preset Increment (Decrement)
PROGRAM
1~17 17~1 1 1
LEVEL 1~24 24~1 N/A 1
GENDER Male/Female N/A Male N/A
TIME 0:00~99:59
Manual PRO 99:00~1:00
Other PRO 99:00~5:00
0:00 1:00
HEIGHT 40~100 100~40 70 1
Value Range (Count Up) Count Down Preset Increment (Decrement)
WEIGHT (lbs)
44~330 330~44 150 1
DISTANCE ( ) mile 0.00~99.99 99.90~0.00 0.00 0.1
WATT 20~400 400~20 100 5
TARGET H.R. 60~220 220~60 120 1
AGE 10~99 99~10 35 1
Program 5Program 1 Program 2 Program 3 Program 4
Program 7 Program 8(Body Fat)
Program 6 Program 9(Ta rget H.R.C.) Program 10(60%H.R.C.)
Program 13(User Setting) Program 14(User Setting)
Program 11(70%H.R.C.) Program 12(80%H.R.C.) Program 15(User Setting)
Program 17(Watt Control)
Program 16(User Setting)
(in)
Programs Variables
P1~P7 TIME, DISTANCE,CAL,AGE
P8 GANDER, HEIGHT, WEIGHT, AGE
P9 TIME,DISTANCE, CAL, TARGET H.R.
P10~P12 TIME, DISTANCE,CAL,AGE
P13~P16 TIME, DISTANCE,CAL,AGE,10 intervals
P17 TIME, DISTANCE,WATT, AGE

BRT5800/3980 Page 19
Computer Operation
OPERATION INSTRUCTIONS
Exercising with specific goal:
• TIME Control: Set up a period of time to exercise.(Except in Program 2)
• DISTANCE Control: Set up a certain distance to exercise. (Except in Program 2)
• BODY FAT Control: Computer designs various programs for different people with different body fat rate.
• WATT Control: Keep different bodies burning in desirous WATT condition
Pulse Rate:
The whole set of heart rate detector includes 2 sensors each side. Each sensor has 2 pieces of metal parts. The correct way to get
detected is to gently hold both metal parts each hand. With the good signals picked up by the computer, the heart mark in the HEART
RATE/ BODY TYPE Display will flash.
(Options: Chest Belt for wireless pulse system is optional. If wireless pulse system is adapted, please refer to the leaflet of wireless
pulse system. It may not apply to all the models, only if the option is along with the computer.)
Manual Program:
Program 1 is a manual program. Press “ENTER” key to select TIME, DISTANCE, CAL, and AGE. Then, press ▲ or ▼ key to adjust the
values. The default level of loading is 6. After pressing “START/STOP” key to exercise, please also apply the heart rate detector
appropriately. Users may exercise at any desired level (by pressing ▲ or ▼ during the workout) with a period of time or a certain dis -
tance. With the input of age, the computer may suggest a target heart rate to exercise. The suggested heart rate is 80% (220-age). So,
if the heart rate detected equals to or greater than the TARGET H.R., the value of HEART RATE will keep flashing.
Please note that it is a warning for users to slow down or to lower the level of loading.
Preset Programs:
Program2 to Program7 is the preset programs. Press “ENTER” key to select TIME, DIST
ANCE, CAL, and AGE. Then, press ▲ or ▼
key to adjust the values. Users may exercise with different level of loading in different intervals as the profiles show.
After pressing
“START/STOP” key to exercise, please also apply the heart detector appropriately. Users may also exercise at any desired level
(by pressing ▲ or ▼ during the workout) with a period of a certain distance. With the input of age, the computer may suggest a target
heart rate to exercise. The suggested heart rate is 80% (220-age).
So, if the heart rate detected equals to or greater than the TARGET H.R., the value of HEART RATE will keep flashing. Please note that
it is a warning for users to slow down or to lower the level of loading.
5. Body Types:
There are 4 body types divided according to the FAT% calculated.
6. BMR: Basal Metabolic Rate
7. BMI: Body Mass Index
Type Man Woman
Type 1
(FAT=0.0%~13.0%) (FAT=0.0%~23.0%)
Type 2 (FAT=13.1%~25.8%) (FAT=23.1%~35.8%)
Type 3 (FAT=25.9%~30.0%) (FAT=35.9%~40.0%)
Type 4 (FAT=30.1%~50.0%) (FAT=40.1%~50.0%)

BRT5800/3980 Page 20
Computer Operation
Body Fat Program:
Program is a special program designed to calculate users' body fat ratio and to design a specific loading profile for users. With 4 8
different body types, the computer can generate 4 different profiles for each. Press “ENTER” key to select GENDER, HEIGHT WEIGHT
,
and
AGE. Then, press ▲ or ▼ key to adjust the values. After pressing “START/STOP” key to calculate body fat, please also apply the
heart rate detector appropriately. If the detector cannot pick up any signals, an error message "Err" will show up in the profile display. If
it happens, press “START/STOP” key to calculate again. Then, the calculation values of FAT%, BMR, BMI, BODY TYPE, and
a designed profile will show up shortly. Press “START/STOP” key to exercise. The profile shown in the display is specially designed for
your body type.
Heart Rate Control Program:
User Setting Programs:
Program 13 to Program 16 are the user setting programs. Users are free to edit the values in the order of TIME, DIST
ANCE, CAL,
AGE,
and the level of loading in 10 intervals. The values and profiles will be stored in the memory after setup. After pressing “START/STOP”
key to exercise, please also apply the heart rate detector appropriately. Users may also change the ongoing loading in each interval
by pressing ▲ or ▼ key, and they will not change the level of loading stored in the memory. With the input of age, the computer may
suggest a target heart rate to exercise.
The suggested heart rate is 80% (220-age). So, if the heart rate detected equals to or greater than the TARGET H.R., the value of
HEART RATE will keep flashing. Please note that it is a warning for users to speed down or to lower the level of loading.
Speed Independent Program:
Program independent program. Press “ENTER” key to select the values of TIME DIST17 is a speed
ANCE, W
ATT, and AGE. Then, press
▲ or ▼key to adjust the values. After pressing “START/STOP” key to exercise, please also apply the heart rate detector appropriately.
During the exercise, the level of loading is not adjustable. In this program, the computer will adjust the level of loading according to
the value of WATT setup. For example, the level of loading may increase while the speed is too slow. Also, the level of loading may
decrease while the speed is too last. As a result, the calculated value of WATT will close to the value of WATT setup by users. With the
input of age, the computer may suggest a target heart rate to exercise. The suggested heart rate is 80%(220-age). So, if the heart rate
detected equals to or greater than the TARGET H.R., the value of HEART RATE will keep flashing.
Please note that it is a warning for users to sleep down or to lower the level of loading.
Pulse Recovery:
It is a function to check the condition of pulse recovery that is scaled from 1.0 to 6.0 while 1.0 means the best and 6.0 means the worst
and the increment is 0.1. In order to get rated correctly, users must test it right after the workout finished by pressing
“TEST(RECOVERY)” key and then stop exercising. After the key is pressed, please also apply the heart rate detector appropriately,
the test will last for 1 minute and the result will show in the display. If the computer does not detect your current heart rate, pressing
“TEST(RECOVERY)” will not enter into the pulse recovery test. During the pulse recovery test, press “TEST(RECOVERY)” to exit the
test and return to the stop status.
Program 9 to Program12 are the heart rate control programs(H.R.C.). In Program9, press “ENTER” key to select TIME DISTANCE,
CAL, and TARGET H.R. Users may setup a target heart rate to exercise in a period of time or a certain distance. In program 10 to
program 12, press “ENTER” key to select TIME, DISTANCE, CAL, and AGE. Then, press ▲ or ▼key to adjust the values. Users may
exercise in a period of time or a certain distance with 60% max heart rate in program 10, and 70% max heart rate in program 11, and
80% max heart rate in Program 12, After pressing “START/STOP” key to exercise, please also apply the heart rate detector
appropriately. In these programs, the computer will adjust the level of loading according to the heart rate detected. For example, the
level of loading may increase while the heart rate detected is lower than TARGET H.R. Also, the level of loading may decrease while
the heart rate detected is higher than TARGET H.R. As a result, the user's heart rate will be adjusted to close to the TARGET H.R. in
the range of TARGET H.R.-5 and TARGET H.R.+5.

BRT5800/3980 Page
21
Safety and Maintenance
• Make sure all nuts, bolts, and screws are tightened prior to use.
• Be sure that all adjustment locking devices and safety devices are properly engaged prior to use!
• Never over-tighten the above-mentioned devices and parts to avoid damage to the unit.
• Check for loose parts and components and make proper adjustments prior to use.
• Check to see if there are any tears or bends in the welding or metal prior to use. If tears or bends are found,
DO NOT use the unit and contact our CUSTOMER SUPPORT.
• Extreme care must be taken to not allow your feet, ngers, hair, clothing, and/or any loose items to be snagged into
any portion of the bike when the unit is in motion. Failure to follow these instructions could result in serious injury,
including the loss of ngers.
• Always wait for the pedals and other moving parts (which can gain great momentum during riding) to come to a
complete stop before dismounting the unit to avoid serious injury.
NOTE: Always wait for the pedals and/or any other moving parts (which can gain great momentum during riding)
to come to a complete stop before dismounting the unit to avoid serious injury.
• To reduce speed on the bike, you may use the combinations of your feet on the Left/Right Pedals (#55/#56) and your
hands on the Left/Right Handlebars (#11/#12) to gently and safely apply counter-momentum.
• Wait for the pedals to come to a complete stop.
• Now you may safely dismount the unit
NOTE:
To safely move, transport, and/or store the unit, please seek the help of capable assistants (minimum of 2 people).
The unit has integrated Front Rollers purposely intended to help ease this process.
• Position one person on each side at the front of the bike toward the handle Bar
(one person on the left, and one on the right).
• Have each person use both hands to grip the corresponding Pulse Handle Bar (#13).
(These are the safest areas to avoid injury during this process.)
• Have both people simultaneously lift the rear end of the unit, leaving the weight and pressure into the front of the unit
and onto the Front Rollers to move/transport the unit to the desired area.
• Please review all safety instructions and warnings in this entire Owner’s Manual, as well as any safety/warning labels
axed to the product before use.
• Do not use solvent cleaners. If you are in any doubt, do not use your cleansing product; contact
CUSTOMER SUPPORT.
• The specic parts on your unit which may see possible signs of wear after prolonged use are listed as follows
(please check these parts before each use):
Foot Pedals (#57/#58); Left/Right Handlebars (#11/#12).
• For any replacement warning labels, please contact our CUSTOMER SUPPORT at
1 (888) 266-6789 or 1 (909) 598-9876, or mail in a written request to:
Body Flex Sports, Inc.
21717 Ferrero Parkway
Walnut, CA 91789
More detailed information about how to reach our CUSTOMER SUPPORT may be found on Page 2 of the
Owner’s Manual under the “CUSTOMER SUPPORT” section.
Safety & Warning
How To (Emergency) Stop
How To Move/Transport The Bike For
Maintenance & Care

BRT5800/3980 Page
22
Warm-Up Instructions
1. Sit with your knees exed and
soles of feet together.
2. Hold your ankles and bend
at your hips (keep your back
straight) as you press your
knees toward the oor with your
elbows.
1. Lie on your back and raise
your right leg as you clasp both
hands under the back of the
knee. Keep your left leg straight.
2. Gently pull your right leg toward
your trunk without
raising your upper body. Switch
leg positions and repeat.
1. Sit with your left leg extended
and bend your right leg at the
knee as you place the sole of
your right foot against the inner
thigh of your extended leg.
2. Flex the foot of your extended
leg (toes pointed toward
ceiling) and gently bend forward
from your hips; keep your back
straight.
3. Reach your hands on your
extended leg as far as possible
and then switch legs and repeat.
1. Assume the depicted position on your hands and knees. Stretch your
hands out in front of you and then slowly start to pull them back in toward
your body as you tuck your chin and arch your back upward.
2. Return to the starting position slowly.
1. Sit with your leg extended and
bend your right knee as you
cross your right leg over your
left leg. Your right foot of your
extended leg foot should be at
on the oor alongside your left
knee.
2. Place your left arm on the
outside of your right leg and pull
against that leg while twisting
your trunk as far as possible to
the right. Place your right hand
on the oor behind your but-
tocks. Reverse leg positions and
repeat.
Before use, you must read and understand all instructions & warnings stated in this Owner’s Manual as well as posted
on the equipment. Before beginning any exercise program including the following exibility exercises, please consult with
your physician.
The following exibility exercises are provided to you as a means to prevent injury while you are exercising. A proper
warm-up routine decreases the chance of injuring your muscles while you are exercising. Please take the time to do these
exibility exercises before and after each time you exercise.
Groin Stretch
Groin Stretch
Hamstring Stretch
Trunk Flexion, Prone
Trunk Twister

BRT5800/3980 Page
23
Warm-Up Instructions
1. Bring your right hand over your
right shoulder to the
upper back and bring your left
hand under your left shoulder to
the upper back.
2. Try to reach your ngertips. If
you are not able to reach your
ngertips, use a towel as an
extension of your hands and
gently pull one hand toward the
other.
Reverse arm positions and
1. Stand on your left leg and hold
onto a support with your left
hand.
2. Flex your right leg behind you,
grasp your ankle or foot with
your right hand and pull your
foot toward your buttocks. Keep
your back straight and right
knee pointed down.
Repeat on the other leg.
1. Place both hands against a wall
to aid your balance. Press the
ball of your left foot against the
wall and keep the heel of the
same foot rested on the oor
(make sure your left knee is
bent).
2. Slowly start to straighten your
left knee and you will feel the
muscles in your left calf stretch.
Switch leg positions and repeat.
Shoulder Stretch Quadriceps Stretch Calf Twister

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THANK YOU FOR YOUR PURCHASE
MODEL NO.: BRT5800/BRT3980
Please ll in the information below and keep this manual
along with your sales receipt as proof of purchase.
Serial Number :
Date of Purchase :
Retailer :
Body Flex Sports, Inc.
21717 Ferrero Parkway
Walnut, CA 91789
Phone : 1 (888) 266-6789
Fax : 1 (909) 598-6707
Email
Ver. 04/08/2019 Printed in China
