F280 - Exercise bike TUNTURI - Free user manual and instructions

Product Type	Exercise Bike
Brand	Tunturi
Model	F280
Dimensions (L x W x H)	Approximately 100 x 50 x 130 cm
Net Weight	Approximately 35 kg
Max User Weight	120 kg
Resistance System	Magnetic, manually adjustable
Number of Resistance Levels	8
Display Type	LCD
Display Metrics	Time, Distance, Speed, Calories, Pulse
Pulse Measurement	Hand grip pulse sensors
Flywheel Weight	Approximately 8 kg
Seat Adjustment	Horizontal and vertical
Pedals	Adjustable straps
Transport Wheels	Yes
Water Bottle Holder	Yes
Power Source	Self-powered (no mains required)
Frame Material	Steel
Maintenance	Clean with damp cloth, lubricate chain periodically
Warranty	2 years
Country of Origin	Finland

Frequently Asked Questions - F280 TUNTURI

How do I assemble the Tunturi F280 exercise bike?

Assembly is straightforward. Follow the included manual step by step. Typically, you attach the front and rear stabilizers, seat post and saddle, handlebars with console, and pedals. All necessary tools are provided.

What type of resistance does the F280 use?

The F280 uses a magnetic resistance system. You can manually adjust the resistance level using a knob on the frame, usually with 8 levels.

Does the display require batteries?

No, the display is self-powered by the pedaling motion. It does not require batteries or mains power.

What is the maximum user weight?

The maximum user weight is 120 kg (265 lbs). Ensure the bike is placed on a stable surface for safety.

How can I adjust the seat?

The seat can be adjusted both horizontally (fore-aft) and vertically (height). Loosen the adjustment knobs, position the seat, and tighten firmly.

How do I measure my heart rate?

Place your hands on the hand grip pulse sensors on the handlebars. The display will show your heart rate after a few seconds of continuous contact.

Is the bike noisy?

The magnetic resistance makes operation very quiet. Some mechanical noise from the chain or bearings may occur, but it is generally minimal and normal.

How do I maintain the exercise bike?

Regular maintenance includes cleaning the frame and console with a damp cloth, checking and tightening all bolts periodically, and lubricating the chain every few months with a suitable lubricant.

Can I get replacement parts?

Yes, replacement parts are available through Tunturi authorized dealers or the official website. Common parts include pedals, seat, and resistance knob.

What should I do if the display does not work?

First, ensure the bike is pedaled because the display is self-powered. If still not working, check the cable connections from the console to the sensor. If the problem persists, contact Tunturi customer support.

USER MANUAL F280 TUNTURI

Exterior view of a Tunturi exercise bike (no signage or text visible on the device body)

The ECB Performance Cycle F 380 with silent magnetic brake and the Fitness Cycle F 280 with conventional belt brake are reliable exercise cycles for home use, which enable you to monitor your fitness.

PLEASE READ THIS OWNER'S MANUAL THROUGH CAREFULLY BEFORE ASSEMBLING AND USING THE CYCLE!

REMARKS AND WARNINGS

* Before beginning to exercise have a doctor check that you are in good health.
* If you experience nausea, dizziness or other abnormal symptoms during exercise, stop immediately and consult a doctor.
* The cycle is not meant for children. Keep children and pets away when you are exercising.
* Place the cycle on as even a base as possible.
* Only one person should use the cycle at a time.
* Keep a firm grip on the handlebar when you get on and off the cycle. Do not step on the frame housing.
* Wear appropriate clothing and footwear when exercising.
* Never put your hands near moving parts.
*To avoid sore muscles, stretch and do warming up and cooling down exercises.
* Do not attempt to carry out any other adjustments or servicing than those described in this manual. If problems arise with the cycle, stop exercising and contact an authorized TUNTURI dealer or the manufacturer.
* The cycle is not recommended for use by persons weighing more than 100 kg.
*Despite continuous quality control, faults or malfunctions due to individual components may arise. It is, however, unnecessary to send the whole device to be repaired as the fault can in most cases be repaired by replacing the component in question.

ASSEMBLY

Unpack the cycle with all its parts and assemble it as follows (right, left, front and rear are as seen from the exercising position. The figures referred to in the text are shown on the fold-out page of the back cover):

Place the four AA size batteries supplied in the battery case on the bottom of the meter. Connect the meter wire plug to the socket in the bottom of the meter (fig. 1). Push the meter into place. Be careful not to catch the wire. Connect the meter wire coming from the upper end of the frame tube to the wire at the lower end of the handlebar tube (fig. 2). Press the handlebar tube into place, being careful not to catch the wire. Tighten the securing screw of the handlebar tube carefully.

Then fasten the resistance adjustment knob to the handlebar tube with the screws (fig. 3).

Put the back support in place under the rear part of the frame and secure it with two M8 screws and washers. Tighten the screws from above the support (fig. 4).

Attach the right pedal to the right-hand crank by turning clockwise and the left pedal to the left-hand crank by turning anti-clockwise. Use a fork wrench. The pedals are marked R for right and L for left.

Insert the seat tube into the frame tube and set it to the desired height by tightening the adjustment knob (Note! between the min and max marks). Fasten the seat to the seat tube with the nuts provided.

USE

Adjusting seat height

Set the seat height so that the middle part of the foot rests on the pedal with the leg almost straight and the pedal in the lowest position. The seat inclination can be adjusted to a certain extent by inserting spacers under the seat securing screws. Always make sure before using the cycle that the locking pin of the seat tube is properly tightened and in its hole.

Adjusting the handlebar

Loosen the handlebar adjusting knob and turn the handlebar until it feels comfortable for exercising. Remember to tighten the knob after adjustment.

Adjusting pedalling resistance

Adjust resistance by turning the knob below the meter. To increase resistance, turn clockwise (+), to decrease resistance turn anti-clockwise (-). It is advisable to start pedalling at low resistance. After warming up for a few minutes, you can gradually increase the resistance. When you stop exercising, decrease resistance and slow down.

METER

Protect the meter from strong sunlight, as it may damage the liquid crystal display. Also make sure the meter does not come into contact with water.

The meter allows you to follow time elapsed, distance cycled and energy expended during exercise and to monitor pulse rate

KEYS

START/STOP

Switches the meter on. The meter will switch off automatically if the cycle has not been used or any key pressed for about 3 minutes.

When the power is switched on the meter is always in the STOP status (text STOP on display). It is then possible to set exercise time, distance or maximum pulse rate. When you press the START/STOP key, the meter goes to the START status and begins to measure time, distance, energy expenditure and pulse rate. If the START/STOP key is pressed again, the meter returns to the STOP status, and the measured values are stored in the memory until the meter switches off or the stored values are reset.

SET KEYS

For setting values (exercise time, distance and maximum pulse rate). Make sure the meter is in the STOP status and the SCAN mode is off. To reset time, distance and energy expenditure, press both SET keys simultaneously when the value to be reset is on the display.

MODE

Selects different modes and displays in the following order: time, speed, distance, revolutions per minute of the flywheel, energy expenditure and pulse rate. The arrowhead at the bottom of the display indicates which mode has been selected.

MODES:

TIME

Either time elapsed counting from zero (0-99 min) or set time counting down to zero

SPEED

Either cumulative distance counting from zero (0-99.99 km) or set distance counting down to zero (99.99-0 km).

RPM

Revolutions per minute of flywheel (0-700 rpm). Rpm can also be seen continuously as a bar graph at the top of the display, whatever mode the digital display is in. One revolution of the pedals equals 3.5625 revolutions of the flywheel (e.g. 285 rpm of flywheel = 80 revolutions of pedals/min)

KCAL

Estimated energy expenditure in kilocalories (1-9990) during exercise. In theory the energy expended can be calculated on the basis of resistance, pedalling speed and distance, but as people's capacity to produce energy - i.e. efficiency - varies, the energy expenditure value is bound to be only a rough estimate of real expenditure. In this matter, energy expenditure has been calculated at a relatively low resistance of only about 1/3 of maximum resistance, the number of kilocalories expended by the user is about three times that indicated on the display

PULSE

The pulse frequency per minute (maximum 199). The pulse is measured by means of an ear sensor. Clip the sensor to the ear lobe and plug it into the socket on the front of the meter. When the heart symbol appears at the right of the display, pulse rate is being measured. N.B! When not using pulse rate measurement, unplug the ear sensor from the meter so as to save the batteries.

If the meter does not seem to connect to the pulse immediately, rub the ear lobe for a short time to quicken the circulation. Vigorous movement of the sensor or its wire may cause disturbances in pulse measurement, especially at high pulse rates (more than 130 beats/min). To keep the sensor and wire better in place, lasten the wire, for example, to your collar with the clip provided. The number of disturbances - extra beats or uncounted beats - can be estimated by following the flashing of the heart symbol on the display. In about ten per cent of people, the pulse can not be measured from the ear, e.g. due to poor circulation in the ear lobe. In this case, try attaching the sensor to the tip of a finger.

It is possible to set the high pulse limit (30-199 beats/min; initial setting 199). If you do not know your own maximum pulse limit (upper limit), you can use the formula 205-(age/2) as a guideline. It is, however, recommended that you have your doctor confirm it. During exercise, the pulse should remain on a level of approximately 60 - 80% of the maximum pulse. If your pulse rises above the set high limit during exercise, the meter will give an audible alarm. Slow down or decrease resistance so that your pulse can return to normal. The alarm signal will stop when your pulse has fallen below the limit. The high pulse limit cannot be reset

SCAN

Alternation of displays. Pressing the MODE key when the arrow points to the TIME display switches the SCAN mode on (text SCAN on display) or off. When the SCAN mode is on, all the displays alternate automatically, at five-second intervals. N.B! Remember to switch off the SCAN mode when setting values!

SETTING VALUES

To set a certain exercise time, distance and/or high pulse limit on the meter.

1. Switch the meter on by pressing the START/STOP key.
2. Make sure that the meter is in STOP status.
3. Press the MODE key until the arrowhead is at the TIME display.
   4 Set the desired time by pressing the SET keys.
4. Press the MODE key until the arrowhead is at the DIST display.
5. Set the desired distance by pressing the SET keys
6. Press the MODE key until the arrowhead is at the PULSE display
7. Set the desired high pulse limit by pressing the SET keys (initial setting 199 beats/min). If you do not know your own maximum pulse rate, you can use the formula for average maximum pulse based on age (205-age/2).
8. Start countdown from set values by pressing the START/STOP key.
9. The meter gives an audible alarm for a few seconds when the set values (time/distance) have been reached. If your pulse rises above the set high limit during exercise, the meter will give an audible alarm. Slow down or decrease resistance so that your pulse can return to normal. The alarm signal will stop when your pulse has fallen below the limit.

MEANINGS OF DISPLAY SYMBOLS

STOP Meter in STOP status

SCAN Display alternation mode on

"Clock" Exercise time set

"Sound waves" Distance set

"Heart symbol" Pulse measurement on

When the set values have been reached or are reset, the set time and/or distance symbols disappear from the display.

REPLACING BATTERIES

If the meter display fades considerably or disappears altogether, replace the batteries. Remove the meter from its bracket and open the battery case lid at the back of the meter. Replace the used batteries with new ones (4 x 1.5 V AA), following the + and - signs on the bottom of the case. Push the meter back into place.

The meter uses four batteries. Pulse measurement receives current from the two lower batteries, other functions are operated by the two upper batteries. If pulse measurement does not function properly, but otherwise the meter functions normally change only the two lower batteries.

To save the batteries, remove them from the meter, when the meter is not being used.

STORAGE AND MAINTENANCE

To prevent malfunctioning and rusting, use and store the cycle in a dry space with as little temperature variation as possible, protected against dust. The TUNTURI F 280 and F 380 need a minimum of maintenance. However, check now and again that all screws and nuts are tight. If malfunctions occur during use, contact your TUNTURI dealer or the manufacturer immediately

TECHNICAL DATA

Length 84 cm

Height 115 cm

Width 60 cm

Weight 37 kg (F 280), 39 kg (F 380)

Flywheel weight/

moment of inertia 14 kg/3.5 kgm2

Transmission ratio 13.5625

Frame material Steel

Ref. no Part no.

1	203 0004 (incl. parts 2, 3)	22	653 0042	49	103 0006
2	213 0001 (incl part 3)	23	253 0002	50	533 0015
4	513 0002	24	363 0002 (incl. part 25)	51	653 0052
5	653 0036	25	363 0003	52	653 0053
6	653 0037	26*	373 0007 (incl. 27, 28, 29, 30)	53*	653 0050
7	203 0005	27*	653 0043	54*	653 0051
8	653 0038	28*	343 0003	55*	643 0002
9	233 0015	29*	523 0006	56	533 0016
10	233 0017	30*	673 0002	57	653 0044
11+	373 0005	31+	303 0003 (incl. parts 32 - 40)	58	523 0008
11*	373 0006	31*	303 0004 (incl. parts 32 - 42)	59	653 0045
12	653 0039	32	333 0004	60	653 0046
13	423 0041	+*	333 0005 (incl. 33-36, 38, 39)	61	653 0047
14	533 0013	37	233 0018	62	653 0048
15	153 0006	40	263 100 88	63	653 0049
16	153 0005	43+	443 0005	64	173 0003 (R)
17	653 0040	44+	503 0008	64	173 0004 (L)
18	653 0041	45+	653 0024	65+	423 0042 (incl. part 66)
19	103 0005	46	533 0014	65*	423 0043 (incl. part 66)
20	353 0009	47	653 0054
21	353 0010 (incl. 22)	48	653 0055	+F280/	'F380

THE CYCLE IS INTENDED FOR HOME USE! IF IT IS USED IN GYMS OR SIMILAR CONDITIONS, TUNTURIPYÖRÄ OY OR ITS REPRESENTATIVES ARE NOT LIABLE FOR ANY INJURY TO USERS OR DAMAGE TO THE CYCLE!

Specifications may be changed due to our continuous programme of product development.