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1. INTRODUCTION

5. OPERATING THE COMPUTER

For most accurate value, please follow the steps below:

1. Start by inflating the tire with proper pressure

2. Facing the tire valve to the ground, mark a spot on the

    ground (right below the valve)

3. With the rider's weight on the bike, roll one full rotation in a 

    straight line (so roll until the valve faces the ground again)

4. Measure the distance in millimeters.This value is your wheel 

    size factor.

Current Cadence

Current Speed

Sub-Feature

2. GETTING PREPARED

The computer has two menus: bike and cadence. The icone

BIKE is displayed in the bottom field when the bike menu is

activated, while icon CAD is displayed in the bottom field

when the cadence menu is activated.

Press the 

B

button to toggle between the two menus. 

Press the 

A

button to toggle through various sub-features of 

each menu.

Release

Fig. 1

Button B

Button A

ATTENTION !! Refer to the appendix for installation reference.

THE BIKE MODE:

Art No.: MCT225-P3-GB

FAT BURNT (FAT)

It measures fat burned (in grams).

TEMPERATURE (TEMP)

It measures the current temperature.

Hold the 

A

 button to change the temperature 

unit, if needed. Press the 

B

 button to select 

and confirm with the 

A

 button.

AVERAGE SPEED (AVS)

It measures average speed.

MAXIMUM SPEED (MXS)

It measures the maximum speed reached.

CALORIES BURNED (CAL)

It measures the calories burned.

ODO (TOTODO-1)

It measures the distance accumulated

for bike 1. 

CLOCK

It shows the current time.

Hold the

A

button to reset the clock.

Press the

B

button to adjust the value and

confirm with the

A

 button.

SCAN

It sets the computer to cycle through all

features automatically while you ride.

INSTRUCTION MANUAL

CYCLE COMPUTER

SPEED TENDENCY

Notice the       in the upper left hand corner 

of the middle display field. The icon is 

animated to spin when the wheel sensor is 

properly functioning and when you start 

your ride. It will appear to spin fast to 

indicate acceleration and appear to spin 

slow to indicate deceleration.

TRIP DISTANCE (DST)

It measures the distance traveled at each ride.

Reset function

Hold the 

A

 button for 3 seconds to reset the Trip distance

and the Trip Timer.

SPEED COMPARATOR (     /     )

Notice the      /      icon located in the lower 

right hand corner of the middle display field. 

A

     indicates that you are riding faster than 

your average speed. 

A

    indicates you are 

riding slower than your average speed.

THE BIKE

WHEEL SIZE FACTOR

The wheel size factor is the distance the wheel turns in one 

revolution in millimeters. It is determined by the following 

formula: Wheel diameter (mm) X3.1416
For quick reference, you may use the wheel size factor chart below.

Distance in millimeters 

in one revolution

Fig. 2

ODOMETER SAVE FUNCTION

It allows you to re-input odometer for bike

1 battery replacement. Hold the

A

button

to re-input the odometer. Press the

B

button to adjust the wheel size factor of

bike 1, if needed. Confirm with 

A

 button. 

SCROLLING THROUGH MENUS AND SUB-FEATURES

Press

Button B

4. OPERATING THE COMPUTER

3. GETTING STARTED

SETUP MODE

You can go to the setup mode by either:

a) Inserting the battery (if not installed)

b) Holding both 

A

and

B

 buttons

Press

B

 button to adjust the value and the 

A

 button to enter and confirm the setting.

Bike 1 wheel 

size factor input

Weight input

12 or 24 

format selection

Clock setting

Bike 1 service 

reminder setting

C/F selection

Home screen

KM or M 

selection

KG or LB 

selection

Age input

AUTO WAKE UP

When there is a signal sending out from the sensor or the belt, 

this computer can wake up automatically without pressing any 

button. In the first two hours after it turns off, the computer takes 

no more than 10 seconds to wakes up. After the first two hours, 

it takes less than 1 minute for the computer to wake up. 

LOW BATTERY WARNING OF THE 

COMPUTER (      )

Notice the icon       located in between KM/h 

and       /

. It indicates low battery of the 

computer head.

LOW BATTERY WARNING OF THE 

SENSORS

Notice TX LOBAT displayed at the bottom 

field. It indicates low battery of either the 

speed or the cadence sensor. Press 

A

 button

to ignore this warning.

AUTO SLEEP AND WAKING THE COMPUTER

If this computer is left idle for more than 5

minutes, it will automatically go to the sleep

mode (with clock) for battery saving. Press

either button to wake the computer and return

to the last screen.

MAXIMUM CADENCE (MAX CAD)

It measures the maximum cadence reached.

THE CADENCE MODE:

AVERAGE CADENCE (AVG CAD)

It measures the minimum cadence.

SCAN

It sets the computer to cycle through all

features automatically while you ride.

WARNING

● Please dispose of used batteries according to local

   regulations.

● Keep batteries and accessories away from children.

2. FEATURES

● Current Speed (0-99.9 km/h or mi/h) 
● Average Speed (0-99.9 km/h or mi/h)
● Max. Speed (0-99.9 km/h or mi/hr) 
● Trip Distance (Up To 999.99 km or mi) 
● Auto Trip Timer ( 9 : 59 : 59) 
● Service Reminder   
● Speed Comparator
● Speed Tendency
● Odometer Save Function
● Total Distance
● Digital Clock
● 12/ 24 Hour Selectable
● KM/ M Selectable
● Current Cadence
● Average Cadence
● Maximum Cadence
● Auto Power Off
● Auto Wake Up

● Temperature (-10°C to 50°C)

● Selection (°C/°F)

● Calories Burn (CAL)

● Fat Burnt (FAT)

● EL Backlight

● Autoscan (SCAN) 

TROUBLE SHOOTING

No

speed or

cadence

reading

Improper magnet 

and sensor 

alignment
Dead battery of 

sensor

Check magnet and sensor 

alignment
Replace the battery.

Reset the computer and the 

sensor.

Irregular

reading

Ambient

temperature
Weak temperature 

Interference

Improper

and

abnormal

reading

Interference
Wrong wheel

size factor

Keep the unit away from any 

source of interference (e.g. CRT

monitor and wireless devices) 
Reset the computer and the 

sensor
Reset the computer and the sensor

SERVICE REMINDER

It automatically tracks distance traveled and 

reminds you to service your bike according to 

the distance entered.

When the preset distance is reached, SERVICE

will be displayed at the bottom field and

will be flashing.

Press button A to ignore this reminder.

Art No.: MCT225-P3-GB

SIZE: (W)440mm x (H)99mm(

單色雙面黑白印刷

)

SO_1132_11N

CAD mode Cadence

Max Cadence

Average Cadence

Max Scan

CURRENT CADENCE (CAD)

It shows the current cadence.

441mm

99mm

EL BACKLIGHT (OPTIONAL)

The EL backlight can be turned on either as follows:

1)Holding the RIGHT button for 2 seconds, the EL light will be 

turned on for 8 seconds and the computer will then go to fast 

scan mode with trip distance, maximum speed, average

speed and trip timer displayed once.

2)Press once on the LEFT Button, the EL light will be turned 

on for 4 seconds and the comuter will go to the freeze frame 

menory mode as well.

1010126-1

TRIP TIME (TM)

It measures the time of each ride.

CHANGE OF DIGITAL CODE ID NUMBER

Whenever you feel there is external interference with your 

computer (e.g., 2 similar computers being used close to one 

another and at the same time), you can change the digital code 

ID number to avoid interference as per either of the following 

ways:

A) The Manual Digital Code ID Selection Mode - Immediate    

     Change

a) Hold the RIGHT button of the computer for 5 seconds until 

    the “change of digital code ID number mode” appears on the 

    display.

b) Press the reset button once on the transmitter.

c) Use the magnet to activate the transmission.

d) The new ID number will thus be registered (e.g., current ID # 

    03 change to new ID# 04)

Important Notes

1) Channels 00, 01, 02, 03, and 04 represent BIKE ID number

    Channels 05, 06 ,07, 08, and 09 represent CADENCE ID number 

    Channels 10, 11, 12, 13, and 14 represent HR PULSE ID number

2) CADENCE ID# change: same procedure as for BIKE ID# change   

    mentioned above.

3) For the PULSE signal ID # change, proceed as below:

a) Remove the battery from the chest strap and insert it again. 

b) Hold the RIGHT button of the cyclocomputer for 5 seconds until  

    the “change of digital code ID number mode” appears on the  display.

c) Rub the 2 sides of the strap with 2 fingers. The new signal with new       

    ID will then be transmitted and registered. 

d) You can also remove the battery from the chest strap and insert it  

    again. Wear the chest strap again. New signal with new ID# will be  

    transmitted and registered in approximately 1 minute.

B) The Automatic Digital Code ID Selection Mode - Running   

     Change

a) Press the reset button once on the transmitter.

b) Keep on running as usual to activate the transmission.

c) The new ID # will register after approximately 1 minute. 

    During the process of the new ID registration, the computer 

    will show no data.

CAUTION:

 

Since the ID number will not be shown on the display, use the above 

procedure A) in order to check the current ID#.

Also make sure you are in an interference free area during this ID# change 

process in order to avoid abnormal ID# registration.

Hold the computer's 

RIGHT button 5 seconds

Showing 

current ID # 3

(after using the magnet to 

activate the transmission)

a)

b) and c)

Reset function

To reset Maximum Speed, Average Speed, Calories burned, 

Fat burnt, Maximum Cadence and Average Cadence, go to each 

mode and hold 

A

 button for 3 seconds.

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