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Manual BTwin 120 Cycling Computer

Name: BTwin 120 Cycling Computer
Brand: BTwin
SKU: 120
Rating: 36 (314 reviews)

Need a manual for your BTwin 120 Cycling Computer? Below you can view and download the PDF manual for free in English. This product currently has 3 frequently asked questions, 111 comments and has 314 votes with an average product rating of 36/100. If this is not the manual you want, please contact us.

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Manual

Km/h

R E S E T

2’’

O K

O KO K

O K

O K O K O K

O K

Download manual in English (PDF, 3.34 MB)

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Ale 18-10-2020
The computer turns on, but does not work, ie when the bike moves the distance traveled remains at zero and so does the speed. what can it depend on? Thanks

reply | This was helpful (132) Read more (Translated by Google)

Eduardo Gonsenheim 08-07-2022
Verify that the distance between the sensor that is attached to the spokes of the front rim, and the component in charge of registering the wheel cycles, is less than 5 mm. It says so in the user manual. The same thing happened to me and as soon as I adjusted the distance between both components, the speedometer returned to normal operation.

This was helpful (17) (Translated by Google)

jean Dupont 17-08-2022
I changed the receiver battery to solve this problem.

This was helpful (8) (Translated by Google)

Gabriel Cordewener 20-12-2023
The speed sensor and the magnet

This was helpful (1) (Translated by Google)

Giancarlo 11-10-2020
Changing the battery resets the total distance traveled. Is it possible to reset it in order to maintain the mileage traveled before the replacement?

reply | This was helpful (97) (Translated by Google)

Nathalie Chabenat 09-10-2019
I bought a btwin 120 counter for my 26 inch bike and the kms are not scrolling. I add that I included in the device 1.75 as the wheel diameter.

reply | This was helpful (77) Read more (Translated by Google)

Rene Adriaensens 06-11-2021
How do I adjust the time to the BTWin 120

This was helpful (41) (Translated by Google)

Jeff 09-12-2020
1.75 is the width of the tire. I advise you to measure the wheel circumference and enter the value in mm in "Other"

This was helpful (22) (Translated by Google)

Jeff 09-12-2020
My meter does not turn off automatically (nor does it turn on), I cannot switch it to automatic. Can Qq1 help me?

reply | This was helpful (50) (Translated by Google)

Erika 14-11-2020
Can I put the btwin120 odometer on the back tire

reply | This was helpful (41) Read more (Translated by Google)

luciano 09-10-2025
no, it always goes on the front wheel fork

This was helpful (0) (Translated by Google)

Christian Pujol 02-01-2020
How to reset the btwin120 totalizer to 0

reply | This was helpful (37) Read more (Translated by Google)

pat 22-03-2021
Yes ! how to reset the btwin 120 totalizer to zero

This was helpful (26) (Translated by Google)

RESET 05-04-2021
With the arrows go to SET, press the OK button, with the arrows select ALL RESET, press the OK button then a second time to confirm

This was helpful (10) (Translated by Google)

Frits 08-12-2019
As a tire size you only seem to be able to choose between 1.5 and 1.75, while my bike is exactly in between. Can you set this more accurately with the B twin 120?

reply | This was helpful (36) (Translated by Google)

Jaś Kowal 28-07-2019
How do I change the time setting?

reply | This was helpful (27) Read more (Translated by Google)

Marine Zemmour 20-03-2022
POLSKA GORA!!!

This was helpful (0) (Translated by Google)

Aurélien PERESSON 07-11-2019
WHAT DO I THINK OF YOUR PRODUCT? REALLY NOT A BIG THING ... A COMPLETE NOTICE IN FRENCH WOULD ARRANGE. I HAVE NOT YET SUCCEEDED TO INDICATE THE TIME ...

reply | This was helpful (25) (Translated by Google)

Badr 05-03-2019
Can i install btwin120 in a motorcycle

reply | This was helpful (22) Read more (Translated by Google)

Marine Zemmour 20-03-2022
Yes Karim, you can do it but if you make a passage in the city on a wheel, the counter will not count, since the front wheel will not turn.

This was helpful (4) (Translated by Google)

ArieB 25-09-2019
If the battery needs to be replaced, all your data, including the kilometers traveled, will immediately disappear, can this be fixed?

reply | This was helpful (22) Read more (Translated by Google)

jan 25-04-2020
new

This was helpful (8) (Translated by Google)

Virginie Marion 27-09-2020
Hello, what does the acronym AVG mean on the meter at the top left? Thank you

reply | This was helpful (18) Read more (Translated by Google)

AVG ≠ AVENGER 05-04-2021
AVG = AVERAGE = Average in French = your average speed on this meter

This was helpful (6) (Translated by Google)

thierry bouchardon 20-09-2019
how to change language

reply | This was helpful (15) (Translated by Google)

Molina Christian 30-01-2022
Hello. If I change the battery of the counter, will I lose the Km recorded??

reply | This was helpful (14) (Translated by Google)

Fortunato 09-01-2021
The computer brings me a kind of tachometer that says avg but it doesn't report anything in the institutions. Can you tell me what it is?

reply | This was helpful (11) Read more (Translated by Google)

Roberto Landi 05-08-2021
Maybe average speed?

This was helpful (0) (Translated by Google)

luciano 09-10-2025
AVG is average kilometers per hour of speed travelled

This was helpful (0) (Translated by Google)

Guy Chevarin 04-11-2020
The meter does not light up even though the battery has been replaced with a new one that has been checked.

reply | This was helpful (10) (Translated by Google)

Mauro TIBERIO 29-03-2021
Is it possible to have a manual in Italian? We are a ridiculous country; I buy the product in Italy but the instructions are in all languages except Italian. I do not believe it. It is not possible.

reply | This was helpful (10) (Translated by Google)

Dom bru 05-08-2019
Why the manual is not explained in French for the meter itself

reply | This was helpful (9) Read more (Translated by Google)

mister 31-07-2020
because English is the international language

This was helpful (0) (Translated by Google)

Alex 05-08-2020
Does it have light to view it at night?

reply | This was helpful (8) (Translated by Google)

Chatelain jacky 29-08-2020
Following the dismantling of my wheel, The meter no longer works I changed the batteries and it doesn't work

reply | This was helpful (8) (Translated by Google)

Luciano Bongiovanni 28-08-2020
I'll bring it back immediately. I don't have to know languages. It is shameful that the instructions are not in Italian. Go and sell it in the countries to which you give the instructions.

reply | This was helpful (6) (Translated by Google)

Jan Gysemans 04-01-2021
I am looking for the Dutch manual of Btwin 100 Best regards Jan

reply | This was helpful (6) (Translated by Google)

jose 21-07-2020
I bought one. which is in miles. How can I put it in kilometers?

reply | This was helpful (5) (Translated by Google)

Adriaensens Rene 29-06-2019
Which button should I press to read the total kilometers driven. I have a wireless b twin 120

reply | This was helpful (4) (Translated by Google)

Janusz 20-06-2020
I bought it by accident and I regret it. First of all, for the undemanding. No corrections, entering even the clock with big problems. I had a Sigma, it was a counter! But I lost it and the other one was not on hand.

reply | This was helpful (4) (Translated by Google)

Gérard DEBIEU 13-08-2020
The meter suddenly began to malfunction; appearance of a small counter icon at the top left with the mention AVG. I did not find any info on this notification. I will refrain from any unpleasant qualifiers on the instructions ...

reply | This was helpful (4) Read more (Translated by Google)

AVG 05-04-2021
AVG = AVERAGE = Average in French = your average speed on this meter

This was helpful (0) (Translated by Google)

ok 05-04-2021
this is not a "dysfunction" but a "function", press the left arrow, and I strongly advise you to read the manual ...

This was helpful (0) (Translated by Google)

Matteo Felici 20-08-2019
The instructions (manual) in Italian are missing

reply | This was helpful (3) (Translated by Google)

Nascimento 08-11-2019
He didn't reset the total distance, I did what the manual says, but I wasn't successful.

reply | This was helpful (3) Read more (Translated by Google)

Tomek Kowal 27-10-2021
Will reset everything

This was helpful (2) (Translated by Google)

Zero zop 05-04-2021
How to display speed and distance automatically?

reply | This was helpful (3) (Translated by Google)

Chicco 29-10-2019
... as usual, I pay in Italian currency (even if euro) and there are no instructions in Dante's language!

reply | This was helpful (2) (Translated by Google)

Suzan van Weeren 02-05-2020
I have adjusted the time but now I can't get out of RESET mode

reply | This was helpful (2) (Translated by Google)

Eric 26-09-2021
I have a problem with the speed it changes constantly at a time it notes 20/23 km / h while I must be at 30 km / h and come back to the right speed so I do not have the accuracy of my speed and the distance traveled and time completed. I specify that the 2 batteries are new and the correct adjustment in relation to the wheel. If you have an answer? Thank you

reply | This was helpful (2) (Translated by Google)

Issou De La Chancla 20-03-2022
The counter calculates the distance traveled during a tour (trip) but also the total distance traveled from the installation. When the counter is turned off, the distance turned returns to 0 and the total distance accumulates. How to reset the total distance to 0? I made it by mistake and I don't want to make that mistake again.

reply | This was helpful (2) (Translated by Google)

Fabrice 24-08-2022
Hello Does the bitwin 120 take stops into account to calculate the average?

reply | This was helpful (2) (Translated by Google)

Computer 16-04-2020
5 ERROR no longer reports assistance as a result. How to solve this?

reply | This was helpful (1) (Translated by Google)

Eric GAILLEDRAT 20-09-2020
I seem to have entered the dimensions of my wheel. Namely 700x38 (VTC wheel) and it tells me incredible speeds. I manage to ride with my 7-year-old child at over 35km / h. He may be my son, but he is not an extraordinary kid. 15km / h seems to me a fairer speed. So how do you optimize the tuning to get real values? On the old counters, I remember that you had to enter the value of the perimeter of the wheel. Thank you for your help

reply | This was helpful (1) Read more (Translated by Google)

Jeff 09-12-2020
Indeed, in "other" enter the perimeter of the wheel.

This was helpful (4) (Translated by Google)

EASY 05-04-2021
With the arrows go to SET, press the OK button, with the arrows select ALL RESET, press the OK button then a second time to confirm

reply | This was helpful (1) (Translated by Google)

MUR Dominique 07-03-2022
My B'Twin 120 computer does not work despite new batteries

reply | This was helpful (1) (Translated by Google)

Primo 20-06-2022
Your odometer reads about 80 meters more per kilometer, that's almost 10 percent. I had predefined reference distances with two other odometers which unfortunately they stole from me. Did I do something wrong with the installation? Thank you

reply | This was helpful (1) (Translated by Google)

Denis 05-10-2023
Hello I set the diameter to size 29 inches and 2.3 I am good in KMS and not in miles but when driving slowly, it shows 50 km/h, I would like it!!!! but the flattery is a bit heavy. I started again 1000 times, it doesn't record anything but what???

reply | This was helpful (1) (Translated by Google)

franco canciani 02-07-2025
How to replace the battery

reply | This was helpful (1) (Translated by Google)

Paul Thomas 18-07-2025
How to put the totalizer counter to zero?

reply | This was helpful (1) (Translated by Google)

Mauricio 05-06-2019
I was using your product but the sensor that is placed on the rim of the bicycle cannot stand and fell, where can I get another one? or how can I supply it? CHEERS

reply | This was helpful (0) (Translated by Google)

Eduardo 05-08-2019
I did the entire process of installing the km account, but it still doesn't count the speed/km

reply | This was helpful (0) (Translated by Google)

RUJA 19-09-2019
Hello, Page 2 of the manual explains how to enter the wheel diameter. I cannot access these screens marked "dIAM." The instructions do not explain how or the video.

reply | This was helpful (0) Read more (Translated by Google)

ruja 19-09-2019
it is accessed by "SEt" / see page 4 of the manual until screen "26" "then bottom left button 2 times if you want" other " in fact on the screen the indication "diam" does not appear contrary to what the instructions indicate

This was helpful (2) (Translated by Google)

Koniono Emile 03-02-2020
Hi please i need the wireless b'twin meter and how much is the price please?

reply | This was helpful (0) (Translated by Google)

Juan Fco., Gordillo 14-04-2020
It's a joke. I have bought two at Decathlon and none have worked. What a bad product and not recommended.

reply | This was helpful (0) (Translated by Google)

Computer 16-04-2020
5 ERROR no longer reports assistance as a result. How to solve this?

reply | This was helpful (0) (Translated by Google)

Paul 28-05-2020
It must still be recognized that the notice is illegible, plus mixing all the languages is not what is best to read it ..... A notice in French on the net would have been the minimum. Too bad because I think the product is well designed ...

reply | This was helpful (0) (Translated by Google)

Christophe TIBERGHIEN 13-06-2020
Very practical counter: easy assembly and very easy to use!

reply | This was helpful (0) (Translated by Google)

Goudard 17-06-2020
A notice in French would be appropriate,

reply | This was helpful (0) (Translated by Google)

jose 21-07-2020
It counts kilometers that I bought is in miles. How can you put it in kilometers?

reply | This was helpful (0) (Translated by Google)

philippe chaventre 01-08-2020
hello .. what does 1.75 correspond to in the adjustment of the wheel?

reply | This was helpful (0) Read more (Translated by Google)

Jeff 09-12-2020
This is the width of the tire

This was helpful (1) (Translated by Google)

Jean Michel 21-08-2020
this notice is completely null!

reply | This was helpful (0) (Translated by Google)

Michel Loze 03-04-2021
My meter records information but does not put it live on my screen

reply | This was helpful (0) (Translated by Google)

Pedro 04-04-2021
I have mounted the device on a quad and the signal does not reach the handlebar, if I bring it closer to the wheel it works. It could be that the battery of the emitter, the receiver or both are low of charge. In the box it says: WIRELES 70 cm.

reply | This was helpful (0) (Translated by Google)

Julie 16-04-2021
How to choose between automatic mode and manual mode on btwin 120?

reply | This was helpful (0) (Translated by Google)

[email protected] 13-05-2021
AND

reply | This was helpful (0) (Translated by Google)

Sarah Lehmann 28-06-2021
Can deleted kilometers on the speedometer be restored?

reply | This was helpful (0) (Translated by Google)

Martial DRELON 01-08-2021
when the battery is changed, the TOTAL counter returns to 0 km ,,,,,, and more, the manual to download on the site is not compatible with the counter ,,,,, Decathlon is no longer what it was ,,,,, may be fine for a beginner, otherwise ,,,,,,,

reply | This was helpful (0) (Translated by Google)

guillou serge 18-08-2021
I have the manual for the B Twin 120, but I don't understand how to change the time. Can someone tell me that "in French"? Thank you

reply | This was helpful (0) (Translated by Google)

Samuel Jesús Cobos urbano 23-09-2021
How can I reset the total kilometers

reply | This was helpful (0) (Translated by Google)

Roberto Rossi 28-09-2021
I turn on the computer and I have both the distance I am doing and the odometer all at 0 as to start it, I have already done everything the manual said, I repeat except for the time it always remains at 0 thanks

reply | This was helpful (0) (Translated by Google)

JOSE 11-11-2021
does not carry light for the night?

reply | This was helpful (0) (Translated by Google)

Rider 13-11-2021
Hello, at what wheel height should the sensor be placed (from the wheel axle)?

reply | This was helpful (0) Read more (Translated by Google)

Issou De La Chancla 20-03-2022
It does not matter, since the number of revolutions will be the same and the sensor and the magnet will pick up 1 time per revolution, no matter the distance from the center

This was helpful (0) (Translated by Google)

Jorge 25-12-2021
Good morning everyone Does anyone know how to turn off the odometer 120?

reply | This was helpful (0) (Translated by Google)

Peeters Frans 03-01-2022
Where can I find the Dutch text to set up the device

reply | This was helpful (0) (Translated by Google)

Evans 06-02-2022
What is the max speed?

reply | This was helpful (0) (Translated by Google)

luigi 27-02-2022
I changed the odometer, I can enter the kilometers already traveled on the new one

reply | This was helpful (0) (Translated by Google)

Beber 22-03-2022
On a new installation in the heart of the year, can we add the km traveled on the boat 120.. if so how?

reply | This was helpful (0) (Translated by Google)

Leonardo Luca 07-04-2022
I mounted it well, the odometer placed on the rear wheel as the front suspension fork is too big, I set the wheel dimensions but it does not calculate the km. Why?

reply | This was helpful (0) (Translated by Google)

Fernand Vermeesch 25-05-2022
How do you convert miles to kilometers?

reply | This was helpful (0) (Translated by Google)

Martina 10-06-2022
Is there a manual in Italian?

reply | This was helpful (0) (Translated by Google)

Eric chuquard 12-06-2022
How to reverse miles to kilometers on my b wtwin odometer

reply | This was helpful (0) (Translated by Google)

Jean DuPont 09-08-2022
Hello, Can I used a sigma counter with a BTwin probe. Thanks

reply | This was helpful (0) (Translated by Google)

Fabrice 24-08-2022
Hello Does the bitwin 120 take account of Thanks stops to calculate the average?

reply | This was helpful (0) (Translated by Google)

Ilario 12-09-2022
The product worked perfectly, then all of a sudden it no longer indicates speed and km, it stays at 0. I changed the battery, but it doesn't work. How can I solve? Thank you

reply | This was helpful (0) (Translated by Google)

Teodoro 19-10-2022
If I tell the truth, it is NOT worth anything, you have them much better and easier to handle, cheaper and with light.

reply | This was helpful (0) (Translated by Google)

Antoine Pontoreau 01-02-2023
Hello, in view of a long bike trip, does the total distance stay stuck at 9999km or is the 10000 displayed?

reply | This was helpful (0) (Translated by Google)

Eberhard Schmalz 30-07-2023
User manual is just weak. Confusing, not user friendly.

reply | This was helpful (0) (Translated by Google)

Doede de Vries 01-08-2023
Have the wireless BC 120. When I cycle faster than 18.6 km, the speedometer goes to 0 KWh. After a while, when I slow down again, the meter shows the speed again. Is this a known issue?

reply | This was helpful (0) (Translated by Google)

Roberto 04-10-2023
Hi, after a month it stopped working, everything turned on but it doesn't move, I also changed the batteries above and below, the distance is regular, 5mm, what could it be? Thanks, I'm waiting for your reply!

reply | This was helpful (0) (Translated by Google)

michel janvier 03-04-2024
despite a battery change, the sensor no longer sends anything the meter is 3 years old

reply | This was helpful (0) (Translated by Google)

test 20-06-2024
Hello, when I want to reset the distance or speed, I press for 2 seconds as indicated in the manual but the counter turns off?! Indeed in the manual, pressing 2 seconds also corresponds to turning off. I don't understand. THANKS

reply | This was helpful (0) (Translated by Google)

T. Leconte 07-07-2024
I don't know how to read hieroglyphics, I'm not an expert in cuneiform writing and I have no experience in cave painting. I'm going to try to contact an extraterrestrial (NASA sent them a message) so that he can explain to me - in French - how to program my computer for illiterate cyclists.

reply | This was helpful (0) (Translated by Google)

marlène 08-08-2025
Hello how to put my counter at 0 at the km. THANKS

reply | This was helpful (0) (Translated by Google)

luciano 09-10-2025
how to reset the total kilometers traveled in a season to zero

reply | This was helpful (0) (Translated by Google)

luciano 09-10-2025
how to reset the total km traveled during a season

reply | This was helpful (0) (Translated by Google)

Vincent Amata 15-10-2025
I'm doing all the tests I can. I changed both batteries, I tried to calibrate the distance between the control unit on the fork and the sensor on the spokes to less than 5 mm. but after two months of purchase I can't get it to work.

reply | This was helpful (0) (Translated by Google)

More about this manual

We understand that it’s nice to have a paper manual for your BTwin 120 Cycling Computer. You can always download the manual from our website and print it yourself. If you would like to have an original manual, we recommend you contact BTwin. They might be able to provide an original manual. Are you looking for the manual of your BTwin 120 Cycling Computer in a different language? Choose your preferred language on our homepage and search for the model number to see if we have it available.

Specifications

Brand	BTwin
Model	120
Category	Cycling Computers
File type	PDF
File size	3.34 MB

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Frequently Asked Questions about BTwin 120 Cycling Computer

Our support team searches for useful product information and answers to frequently asked questions. If you find an inaccuracy in our frequently asked questions, please let us know by using our contact form.

Why do I need to enter the size of my wheel? Verified

To calculate the traveled distance, the cycling computer uses the number of revolutions. The number of revolutions multiplied by the size of the wheel equals the traveled distance.

This was helpful (4396) Read more

How many miles is one kilometer? Verified

One kilometer equals 0,621 mile. Ten kilometers makes 6,21 miles. One mile equals 1,609 kilometer. Ten miles makes 16,09 kilometers.

This was helpful (768) Read more

A battery in my device is oxidized, can I still safely use it? Verified

Ja, the device can still be safely used. Firstly, remove the oxidizd battery. Never use bare hands to do this. Then clean the battery compartment with a cotton swab dipped in vinegar or lemon juice. Let it dry and insert new batteries.

This was helpful (768) Read more