Insportline IN 13901 User manual

USER MANUAL –EN
IN 13901 Elliptical Trainer inSPORTline Soledat

2
CONTENTS
SAFETY PRECAUTIONS........................................................................................................................ 3
SAFETY NOTICE.................................................................................................................................... 3
EXPLODED DRAWING........................................................................................................................... 5
PARTS LIST............................................................................................................................................ 6
PRODUCT DESCRIPTION..................................................................................................................... 7
SPECIFICATION..................................................................................................................................... 8
SCREW BAG........................................................................................................................................... 8
HARDWARE LIST................................................................................................................................... 9
ASSEMBLY INSTRUCTIONS................................................................................................................. 9
HALF EXPLODED DRAWING AND PARTS LIST................................................................................ 13
EXERCISE RECOMMENDATIONS...................................................................................................... 14
STRETCHING EXERCISES.............................................................................................................. 15
COMPUTER OPERATIONS ................................................................................................................. 16
DISPLAY FUNCTIONS...................................................................................................................... 16
BUTTON FUNCTIONS...................................................................................................................... 16
OPERATION.......................................................................................................................................... 17
POWER ON....................................................................................................................................... 17
MANUAL SETTING MODE................................................................................................................ 17
APPLICATION TRAINING MODE..................................................................................................... 18
USER PROGRAM TRAINING MODE ............................................................................................... 18
HEART RATE CONTROL TRAINING MODE ................................................................................... 18
WATT CONTROL TRAINING MODE................................................................................................ 19
HEART RATE RECOVERY STATUS TEST ..................................................................................... 19
BODY FAT MODE ............................................................................................................................. 19
TERMS AND CONDITIONS OF WARRANTY, WARRANTY CLAIMS................................................. 20

3
SAFETY PRECAUTIONS
WARNING: This device has been designed and constructed to provide maximum safety.
Nevertheless, certain precautions should be taken when using exercise equipment. Read the whole
manual carefully before assembling and using the elliptical trainer. The following safety precautions
should also be observed:
1. It is the responsibility of the owner to ensure that all users of this device are adequately
informed of all precautions. Use the elliptical trainers only as described in this manual.
2. Keep children and pets away from this equipment at all times. Do not leave them near this
device without supervision of any adult.
3. Inspect and assemble all parts regularly. Replace worn parts immediately.
4. Place this device on a level surface, with at least 0.6 m of clearance on each side of elliptical
trainer. To protect the floor or carpet from damage, place a mat under the elliptical trainer.
5. Use it only indoors, away from moisture and dust. Maintain the using place ventilation. Do not
use it in the airless place.
6. Don’t put any sharp things around the elliptical trainer. No adjustable part should protrude to
obstruct movements of the user.
7. Wear appropriate clothes while exercising; do not wear loose clothes that could become
caught on this device. Always wear athletic shoes for foot protection while exercising.
8. Max. weight limit: 120 kg.If you are over this limit, don’t use it.
9. Do not put your hands on the moving parts to prevent injuries.
10. Keep your speed under control and pay attention.
11. If you find your device works abnormal, do not use it immediately.
12. No more than one person should operate the elliptical trainer at one time.
13. If you feel pain or dizziness while exercising, stop exercising immediately and consult it with a
medicine doctor.
14. Stride length: 165 mm. Weigh of the flywheel: 6 kg.
15. Category: HC (according to EN957 norm) suitable for home using.
16. WARNING! The heart rate frequency monitoring may not be completely accurate.
Overexertion during training can lead to a serious injury or even death. If you start to feel faint,
stop the exercise immediately.
SAFETY NOTICE
Ask your physician for advice before every exercising. Exercising has to improve your body condition.
Incorrect exercising can cause an injury. Don’t use this device if you have below mentioned problems
or diseases.
Problems with waist or legs (pain, wound, paralysis).
Anamorphosis, arthritis, rheumatism and gout.
Osteoporosis and other abnormality.
Perfunctory system obstacles (heart disease, blood obstacle, hypertension).
Breath obstacle.
Sarcoma or other oncological disease.
Thrombus or other symptoms.
Diabetes or obstacle caused by diabetes.
Skin disease.

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Hyperpyrexia caused by sick (38 ℃or over 38 ℃).
Abnormal back bone or back bone bending.
Pregnant women or women during period.
Physical abnormality.
Worsened body condition.
WARNING: Before beginning any exercise program, consult your physician. This is especially
important for persons older than 35 years or persons with pre-existing health problems. To reduce the
risk of serious injury, read all important precautions and instructions in this manual and all warnings on
your elliptical trainer before using and keep it for future reference.

5
EXPLODED DRAWING

6
PARTS LIST
No.
Name
Specification
Qty
No.
Name
Specification
Qty
1
Main frame
1
47
End cap
4
2
Front stabilizer
1
48
Feet pad
Φ47×10.5×M10×20
4
3
Rear stabilizer
1
49
Hex nut
Φ8x33xM6x15
2
4
Upright post
1
50
Wheels
Φ55x25.8
2
5
Pedal (left)
1
51
Allen C.K.S. full thread
screw
M6x15
5
6
Pedal (right)
1
52
Deep groove ball
bearing
6203-2RS
3
7
Saddle post
1
53
Hex nut
M5
2
8
Saddle
1
54
Allen C.K.S. full thread
screw
M5x80
1
9
Handlebars
1
55
Philips C.K.S. self-
tapping screw
ST4x12
1
10
Console fixed piece
1
56
Saddle post bushing
1
11
Console
1
57
Crank axle
Φ17x154.3
1
12
Magnetic sensor wire
1
58
Belt pulley
Φ263x19
1
13
Console
communication wire
1
59
Power adapter
1
14
Power communication
wire
1
60
Saddle adjustment
1
15
Magnetic sensor wire
1
61
Circlip shaft
Φ17
2
16
Handle pulse
connection wire
2
62
Circlip shaft
Φ12
2
17
Console outset
2
63
Circlip shaft
Φ10
3
18
Console connection
wire
1
64
Tension pulley
Φ38x22
1
19
Upright post cover
1
65
Tension spring
1
20
Bottle holder
1
66
Brake tension spring
1
21
Rotary hand bolt
Φ56×M16×P1.5
1
67
Deep groove ball
bearing
6003-2RS
1
22
Handlebar rotary
knob
1
68
Magnetic control fixed
axle
Φ12x50
1
23
Bushing
Φ10.5×Φ14×10
1
69
Deep groove ball
bearing
6003-2RS
1
24
Saddle cover (left)
1
70
Flat washer
Φ34×Φ25×t1.0
1
25
Saddle cover (right)
1
71
Crank cover
2
26
T-shaped rotary knob
M8x30
1
72
Unidirectional needle
bearing
Φ35×Φ17×16
1
27
Handlebar cover (left)
1
73
Small belt pulley set
Φ30x64
1
28
Handlebar cover
(right)
1
74
Deep groove ball
bearing
6000-2RS
1
29
Allen C.K.S. half
thread screw
M8x50x20
4
75
Flywheel axle
Φ10x109.5
1
30
Spring washer
Φ8
7
76
Flywheel
Φ208/6 kg
1
31
Flat washer
Φ8.5×Φ20×t1.5
8
77
Square end cap
20x40xt1.5
1

7
32
Allen C.K.S. full
thread screw
M8x20
7
78
Handle pulse set
2
33
Curved washer
Φ8.5×R25×t2.0
2
79
Philips C.K.S. self-
tapping screw
ST4x20
2
34
Allen C.K.S. half
thread screw
M8x65x20
3
80
Round end cap
Φ25xt1.5
2
35
Hex self-locking nut
M8
9
81
Philips C.K.S. self-
tapping screw
ST4x25
7
36
Philips C.K.S. self-
tapping screw
ST4x16
12
82
Fixed magnet set
1
37
Philips pan head full
thread screw
M4x6
4
83
Allen C.K.S. full thread
screw
5/16-18UNC-1"
2
38
Philips pan head full
thread screw
M5x10
4
84
Tension pulley
1
39
Philips pan head full
thread screw
M4x10
4
85
Magnetic control fixed
axle
1
40
Philips pan head full
thread screw
M5x10
4
86
Motor belt
440PJ6
1
41
Crank (left)
1
87
Foam grip
Φ22xt3.0x680
2
42
Crank (right)
1
88
Motor cover (left)
1
43
Crank cover
2
89
Motor cover (right)
1
44
Philips C.K.S. self-
tapping screw
ST4x12
4
90
Saddle locking piece
1
45
Magnetic motor
1
91
Brake wire
1
46
Upright post
decoration strip
1
92
Sensor wire fixed piece
1
PRODUCT DESCRIPTION

8
SPECIFICATION
Model No.
B51
Dimensions
Folded: 1100x530x1400 mm
Max. upload
120 kg
Number of resistance levels
32
Flywheel
Single way, Φ280/6 kg
UP and DOWN
6 levels, 152.4 distance
FRONT and BACK
70 mm distance
NOTICE: We amend the right to amend the product without prior notice.
SCREW BAG
Picture
No.
Name
Specification
Qty
29
Allen C.K.S. half thread screw
M8x50x20
4
30
Spring washer
Φ8
7
31
Flat washer
Φ8.5xΦ20xt1.5
7
32
Allen C.K.S. full thread screw
M8x20
2
33
Curved washer
Φ8.5xR25xt2.0
2
34
Allen C.K.S. half thread screw
M8x65x20
3
35
Hex self-locking nut
M8
2
36
Philips C.K.S. self-tapping screw
ST4x16
2
37
Philips pan head full thread screw
M4x6
4
38
Philips pan head full thread screw
M5x10
4
39
Philips pan head full thread screw
M4x10
4

9
HARDWARE LIST
Name
Spec.
Qty
L-shape wrench
5x35x80S
1
L-shape wrench
6x40x120
1
Wrench
15#&17#
1
Wrench
1
ASSEMBLY INSTRUCTIONS
To assemble this device correctly follow steps below.
Step 1
Attach the front stabilizer (2) to the main frame (1) and fix them. Use the flat washers (31), spring
washers (30) and the Allen C.K.S. half thread screws (29).

10
Step 2
Attach the rear stabilizer (3) to the main frame (1) and fix them. Use the flat washers (31), spring
washers (30) and the Allen C.K.S. half thread screws (29).
Step 3
Attach the upright post decoration strip (46) to the upper upright post (4). Take the upright post
cover (19) out of the main frame (1) and cover it on the upper upright post (4).
Connect motor communication wire (12) and console communication wire (13) as shown in the
picture.
Attach the upper upright post (4) to the main frame (1) and fix them. Use the curved washer
(33), spring washer (30), Allen C.K.S. half thread screw (34), flat washer (31), spring washer
(30), Allen C.K.S. full thread screw (32), flat washer (31), Allen C.K.S. half thread screw (34),
hex self-locking nut (35), curved washer (33), spring washer (30), Allen C.K.S. full thread
screw (32).
Put the upright post cover (19) and the upright post decoration strip (46) into the main frame
(1).
Attach the bottle holder (20) to the upper post (4) and fasten it with the Philips pan head full
thread screw (36).
NOTICE: Put the communication wires and the resistance adjustment knob wire into the upright post.
Make sure that all the screws are in the hexagonal hole before you will tighten them.

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Step 4
Attach the left pedal (5) and the right pedal (6) to the main frame (1). Tighten the bolts.
Step 5
Loosen the rotary hand bolt (21) and put the saddle post (7) into the main frame (1). Thereafter tighten
the rotary hand bolt (21) again.

12
Step 6
Put the saddle (8) onto the saddle post (7) and tighten them with the handlebar rotary knob
(22) and bushing (23). ATTENTION: Do not lock it.
Adjust the saddle to the correct position. Attach the left saddle cover (24) and the right saddle
cover (25) to the saddle post (7). Use the Philips pan head full thread screw (37) to tighten
them.
Lock the handlebar rotary knob (22).
Step 7
Stick the pulse connection wire (16) through the upright post (4) and attach the
handlebars (9) to the upright post (4). Tighten it with the T-shaped rotary knob (26).
Attach the console fixed piece (10) to the upright post (4) and tighten them with the Philips
C.K.S. pan head full thread screw (38).
NOTICE: Make sure that all the screws are in the hexagonal hole before you will tighten them.

13
Step 8
Connect the console communication wire (13) and the console connection wire (18).
Connect the handle pulse connection wire (16) and the console outset (17).
Attach the console (11) to the console fixed piece (10) and tighten these parts with the
Philips pan head full thread screw (40).
Attach the left handlebar cover (27) and the right handlebar cover (28) through the
handlebars (9) to the upright post (4) and tighten them with the Philips pan head full
thread screw (39).
NOTICE: Make sure that all the screws are in the hexagonal hole before you will tighten them.
HALF EXPLODED DRAWING AND PARTS LIST

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No.
Name
Specification
Qty
No.
Name
Specification
Qty
1
Main frame
1
23
Bushing
Φ10.5xΦ14x10
1
2
Front stabilizer
1
24
Left saddle cover
1
3
Rear stabilizer
1
25
Right saddle cover
1
4
Upright post
1
26
T-shaped rotary
knob
M8x30
1
5
Pedal (left)
1
27
Left handlebar cover
1
6
Pedal (right)
1
28
Right handlebar
cover
1
7
Saddle post
1
29
Allen C.K.S. half
thread screw
M8x50x20
4
8
Saddle
1
30
Spring washer
Φ8
7
9
Handlebars
1
31
Flat washer
Φ8.5xΦ20xt1.5
7
10
Console fixed piece
1
32
Allen C.K.S. full
thread screw
M8x20
2
11
Console fixed piece
1
33
Curved washer
Φ8.5xR25xt2.0
2
12
Magnetic sensor
wire
1
34
Allen C.K:S: half
thread screw
M8x65x20
3
13
Console
communication wire
1
35
Hex self-locking nut
M8
2
16
Handle pulse
connection wire
2
36
Philips C.K.S. self-
tapping screw
ST4x16
2
17
Console outset
2
37
Philips pan head full
thread screw
M4x6
4
18
Console connection
wire
1
38
Philips pan head full
thread screw
M5x10
4
19
Upright post cover
1
39
Philips pan head full
thread screw
M4x10
4
20
Bottle holder
1
40
Philips pan head full
thread screw
M5x10
4
21
Rotary hand bolt
Φ56xM16xP1.5
1
46
Upright post
decoration strip
1
22
Handlebar rotary
knob
1
EXERCISE RECOMMENDATIONS
WARM-UP
Take a warm-up phase before each exercising (approx. 5 –10 mins.).
BREATH
Do not hold your breath while exercising. Sniff with your nose and breath out with your month when
you take relaxation exercises. Coordinate your body activities with your breathing together. If you
breath too quickly, stop exercising.
FREQUENCY
Do not train the same muscles every day. Have a two-day break.

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BODY LOAD
Train step by step and don’t forget, that the physical training is very individual. The muscle soreness is
normal during the first period. It will get better with time.
RELAXATION EXERCISES
Do relaxation exercises after each exercising (approx. 5 mins.). Relaxation exercises of leg muscles
help to avoid overstretching and to increase the elasticity of your muscles.
DIET
Don’t exercise within 1 hour of having a meal or half an hour before eating to protect the digestive
system. Don’t drink a lot of water during exercises. Don’t burden your heart and kidneys.
STRETCHING EXERCISES
Take stretching exercises before each exercising independently of the distance you want to go.
Warmed muscles are better for stretching. Walk for 5 –10 mins. to warm up yourself and then take the
stretching exercises as shown in these pictures. Do it 5 times, each leg for 10 seconds or more.
Repeat it after the training finish.
Stretching downwards
Bend your knees slightly. Bend your body forward
slowly to relax your back and shoulders. Try to touch
your toes. Keep for 10 –15 seconds and relax.
Repeat 3 times
Hamstring stretching
Sit down on a clean surface. Keep one leg straight
and the other one inward. Try to touch your toes with
your hands. Keep for 10 –15 seconds. Repeat 3
times for each leg.
Leg and Achilles tendon stretching
Put your hands on a wall or a tree. Step with one foot
back and lean on the wall (tree). Keep the heel of this
foot off the ground. Keep for 10 –15 seconds and
relax. Repeat 3 times for each foot.
Quadriceps stretching
Keep balance with your left hand on a wall or a desk.
Stretch your right hand backwards and seize your
right ankle. Pull it slowly towards your hips until you
feel your thigh muscles are tense. Keep for 10 –15
seconds and relax. Repeat 3 times for each leg.
Sartorius stretching
Sit down with your knees outward and with your soles
facing each other. Grasp your feet and pull them
toward your groin. Keep for 10 –15 seconds and
relax. Repeat 3 times.

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COMPUTER OPERATIONS
DISPLAY FUNCTIONS
ITEM
DESCRIPTION
TIME
Displays the time numerical value during exercising in the range: 0:00 ~ 99:59.
SPEED
Displays the speed numerical value during exercising in the range: 0.0 ~ 99.9.
DISTANCE
Displays the distance numerical value during exercising in the range: 0.0 ~ 99.9.
CALORIES
Displays the burned calories during exercising in the range: 0 ~ 999.
PULSE
Displays the pulse numerical value during exercising. If the value is over the pre-
set target pulse you will hear a sound alarm.
RPM
Rotation per min. Range: 0 ~ 999.
WATTS
Displays the consumed power rate during exercising in the range: 0 ~ 350.
MANUAL
Manual Setting Mode
PROGRAM
Application Mode (12 programs for your choice).
USER
User exercising mode. User can set the resistance graphics.
H.R.C.
Target heart rate training mode.
WATT
Watt control training mode.
BUTTON FUNCTIONS
ITEM
DESCRIPTION
RESET
Press this button for 2 seconds and the computer will reboot and start from the
user setting. Press this button to return to the main menu (in the stop mode) or if
you are in the value setting mode.
BODY FAT
Test your Body Mass Index (BMI).
UP
Select the training mode and increase the numerical value.
RECOVERY
Test the heart rate recovery status.
DOWN
Select the training mode and decrease the numerical value.
MODE
Confirm the setting value or your choice.
START/STOP
Start or stop working.

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OPERATION
POWER ON
Plug it in. The speed meter and LCD display will boot for 2 seconds. It shows the wheel diameter
value. Then enter the user setting mode (set U1 ~ U4 –group, age, gender, height, body weight). If
this device has not any pedal activity or any heartbeat signal for 4 minutes, it will enter automatically
into the power saving mode. Press any key to wake up the speed meter.
MANUAL SETTING MODE
Under the main screen, press “START/STOP” button. It will enter the manual setting mode directly.
1. Press “UP” or “DOWN” to select sports program. Select “MANUAL” and press “MODE” button
to enter.
2. Press button to set following values: TIME, DISTANCE, CALORIES, PULSE. Then press
“MODE” to confirm them.
3. Press “START/STOP” button to start.
4. During exercising press “UP” or “DOWN” to increase or decrease the values (1 to 32).
5. Press “START/STOP” button again to suspend movement. Press “RESET” button to return to
the main display.

18
APPLICATION TRAINING MODE
1. Press “UP” or “DOWN” button to select the exercising program. Select the “PROGRAM” and
press “MODE” button to enter. Choose P01 – P12 graphics and confirm with “MODE” button.
2. Press “UP” or “DOWN” button to set the time numerical value.
3. Press “START/STOP” button to start.
4. Press “UP” or “DOWN” button to set the resistance values (1 to 32) during exercising.
5. Press “START/STOP” button again to suspend movement. Press “RESET” button to return
back to the main display.
USER PROGRAM TRAINING MODE
1. Press “UP” or “DOWN” button to select exercising program. Select the “USER PROGRAM”
and press “MODE” button to enter.
2. Press “UP” or “DOWN” button to set the resistance values of each field. Press “MODE” button
to enter the next set (you need to set 20 fields in total).
3. Press “MODE” button for 2 seconds to complete it or to exit.
4. Press “UP” or “DOWN” button to set the time value.
5. Press “START/STOP” button to start.
6. Press “START/STOP” button again to suspend movement. Press “RESET” button to return
back to the main display.
7. Press “UP” or “DOWN” button to set the resistance values (1 to 32).
HEART RATE CONTROL TRAINING MODE
1. Press “UP” or “DOWN” button to select exercising program. Select “H.R.C.” and press
“MODE” button to enter.
2. Press “UP” or “DOWN” button to select H.R.C. - 55%, 75%, 90% or “H.R.C. AG (H.R.)”.
Default: 100.
3. Press “UP” or “DOWN” button to set the time value.
4. Press “START/STOP” button to start or stop the setting. Press “RESET” button to return to the
main display.
5. If there is no heartbeat signal during exercising, the speed meter will stop and alarm to remind.

19
WATT CONTROL TRAINING MODE
1. Press “UP” or “DOWN” button to select the exercising program. Select “WATT” and press
“MODE” button to enter.
2. Press “UP” or “DOWN” button to set the target WATT value (default value: 120). Press
“MODE” button to confirm it.
3. Press “UP” or “DOWN” button to set the time value during exercising.
4. Press “START/STOP” button to start or stop moving. Press “RESET” button to return back to
the main screen.
5. User can press “UP” or “DOWN” button to adjust the WATT value during exercising.
HEART RATE RECOVERY STATUS TEST
1. After a period of exercising time hold the hand grip and press “RECOVERY” button to start a
test.
2. All display functions will stop except the TIME. It starts counting down from 00:60 to 00:00.
3. The LCD will display the heart rate recovery status by F1, F2…F6. F1 is the best status and
F6 the worst. The press “RECOVERY” button to return to the main display.
4. During the test, press “RECOVERY” button again. The console will return back to the previous
display.
1.0
Best
1.0<F<2.0
Better
2.0<F<2.9
Good
3.0<F<3.9
Normal
4.0<F<5.9
Worse
6.0
Worst
BODY FAT MODE
1. User can press “BODY FAT” button for body fat testing when the device does not work. Hold
the handgrip tightly.
2. The LCD will display “-------“. Thereafter it will display body percentage, body mass index,
obesity symbols (in 8 seconds).
3. It will show some other symbols in following situations:
“E-1” – shows, that user doesn’t put his thumb on the right position of the handgrip.
“E-4” – shows that the body fat percentage and body mass index are beyond the range of the
system setting.
After the test, press “BODY FAT” button to return to the former setting and continue to exercise.

20
B.M.I.:
B.M.I.
Low
Low/Mid
Mid
Mid/High
Range
<20
20 - 24
24.1 –26.5
>26.5
BODY FAT:
Symbol

+
▲
◆
Body fat
percentage
Low
Low/Mid
Mid
Mid/High
Male (sex)
<13%
13% - 25.9%
26% - 30%
>30%
Female (sex)
<23%
23% - 35.9%
36% - 40%
>40%
This speed meter requires the use of 9V, 500 mA or 9V, 1000 mA transformer.
The speed meter will enter the power saving mode in 4 minutes after stop of moving. All the
settings and exercise values will be saved until next time.
If the speed meter doesn’t display normally, pull out the transformer and insert it again.
TERMS AND CONDITIONS OF WARRANTY, WARRANTY CLAIMS
General Conditions of Warranty and Definition of Terms
All Warranty Conditions stated hereunder determine Warranty Coverage and Warranty Claim
Procedure. Conditions of Warranty and Warranty Claims are governed by Act No. 40/1964 Coll. Civil
Code, Act No. 513/1991 Coll., Commercial Code, and Act No. 634/1992 Coll., Consumer Protection
Act, as amended, also in cases that are not specified by these Warranty rules.
The seller is SEVEN SPORT s.r.o. with its registered office in Borivojova Street 35/878, Prague
13000, Company Registration Number: 26847264, registered in the Trade Register at Regional Court
in Prague, Section C, Insert No. 116888.
According to valid legal regulations it depends whether the Buyer is the End Customer or not.
“The Buyer who is the End Customer” or simply the “End Customer” is the legal entity that does not
conclude and execute the Contract in order to run or promote his own trade or business activities.
“The Buyer who is not the End Customer” is a Businessman that buys Goods or uses services for the
purpose of using the Goods or services for his own business activities. The Buyer conforms to the
General Purchase Agreement and business conditions to the extent specified in the Commercial
Code.
These Conditions of Warranty and Warranty Claims are an integral part of every Purchase Agreement
made between the Seller and the Buyer. All Warranty Conditions are valid and binding, unless
otherwise specified in the Purchase Agreement, in the Amendment to this Contract or in another
written agreement.
Warranty Conditions
Warranty Period
The Seller provides the Buyer a 24 months Warranty for Goods Quality, unless otherwise specified in
the Certificate of Warranty, Invoice, Bill of Delivery or other documents related to the Goods. The legal
warranty period provided to the Consumer is not affected.
By the Warranty for Goods Quality, the Seller guarantees that the delivered Goods shall be, for a
certain period of time, suitable for regular or contracted use, and that the Goods shall maintain its
regular or contracted features.
The Warranty does not cover defects resulting from (if applicable):
User’s fault, i.e. product damage caused by unqualified repair work, improper assembly,
insufficient insertion of seat post into frame, insufficient tightening of pedals and cranks