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Questions tagged [sensor]

Questions relating to Sensors on a bike, whether its cadence or wheel RPM, or a heart-rate monitor (HRM)

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Brake sensor wire

I have an electric bike, and I am looking for an electric wire that is attached to the brake lever. how can I get it? regards. Hussein Talib.
Hussein Ali's user avatar
4 votes
1 answer
389 views

eBike torque sensors: Are hub systems capable of the same ride feel as mid-drive?

There are two basic types of ebike controller - cadence or torque sensing. Typically mid-drive ebike systems use torque sensing to control the motor, and cheaper hub drive systems often use cadence ...
SamA's user avatar
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1 vote
0 answers
154 views

Vanmoof bottom bracket sensor

I have a Vanmoof S2 and had the bottom bracket replaced ~6months ago. Now I experienced cutout of the motor again and recently no support at all. I disassembled the bike and found no signs of wear of ...
Paamand's user avatar
  • 111
4 votes
5 answers
1k views

How to securely attach a single-piece cadence sensor on bikes with steeply-angled chainstays?

With chainstays set so steeply outward to accommodate wider tyres, the gap between the cranks and the chainstays is truly minimal. How do you secure your single-piece (accelerometer-based) cadence ...
Sam7919's user avatar
  • 9,246
0 votes
2 answers
12k views

How do I get a Garmin Cadence Sensor 2 to pair with an iPhone?

I have bought a Garmin Cadence Sensor 2. After installing it on the bike and rotating the cranks to wake it up, theoretically I should be able to pair it with my iPhone but it doesn’t appear in ...
Robert Atkins's user avatar
0 votes
1 answer
169 views

What's this red cylinder thing below the front axle?

Criggie: What's the red cylindrical thing on the drive side of the front fork? Is it part of the timing system? Carel: They used 'simple' speed sensors in those days, no GPS! It is the sensor with a ...
Criggie's user avatar
  • 125k
3 votes
1 answer
3k views

3% difference speed sensor vs GPS

I'm using the Wahoo ELEMNT BOLT with RPM speed sensor. First few rides with my dad I noticed my measured distance was about 2-3% off from his, I used the standard 2.096m size of my wheel (700x23C). He ...
xigoL's user avatar
  • 31
4 votes
2 answers
379 views

Installation of round bike cadence sensor - in the end of crank screw?

I got a "LIVALL® P1 Smart Bicycle/Bike Nano Cadence Sensor", round and flat which appears to have a screw in for the end of the crank. However on all the bicycles I see there is the hexagonal screw ...
NoBugs's user avatar
  • 461
0 votes
1 answer
187 views

Ancheer 250watt Motor Hall Sensors?

I need to replace the 3 hall sensors in this 36v 26" hub motor for ancheer bike. I purchased the 41F/0H41/SH41/SS41F/S41 Bipolar Hall Element Sensor TO-92UA but it is bigger and does not fit. i ...
snurok's user avatar
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1 vote
3 answers
2k views

Cadence or speed sensor for training

Which is better for training, cadence or speed? With the sufferfest both are displayed does it make sense to use both while training?
Jerome's user avatar
  • 11
11 votes
2 answers
14k views

Wahoo Speed sensor: how does it work, exactly?

The Wahoo Speed sensor doesn't use a magnet to count the RPM, it's a single-unit and "(...) a 3-axis accelerometer is used to determine the rotation of the hub and thus your speed" (source) ...
kryger's user avatar
  • 488
1 vote
2 answers
364 views

Need magnet for RPM and speed sensors

I bought used speed and RPM sensor by echowell. Here is a picture with this product and I highlitghted in red components that are missing. So as I unserstood this is magnet for sensors. Question: can ...
Vladyslav K's user avatar
4 votes
1 answer
1k views

What's the difference between power meter and bike computer?

I am currently using a IpBike computer app (on Android) with DuoTrap Speed and Cadence sensors on my bike. I was reading about power meters and how they would help in training by assessing the power ...
Uresh Kuruhuri's user avatar
0 votes
1 answer
165 views

pairing a Duotrap sensor the the ibike Newton

Is a Duo-trap speed/cadence sensor compatible with an I-bike Newton head unit? I can't make it pair up. I've tried keeping it a decent distance from other sensors and have tried resetting it, and ...
A. MacDonald's user avatar
2 votes
1 answer
754 views

Garmin Cadence Sensor

I have just changed the battery in my garmin cadence sensor on my road bike, but when I press the reset button only the red light shows but no green light. Anyone know why? Thanks
Craig Lingard's user avatar
0 votes
2 answers
1k views

Can anyone tell me how pedelec sensor in PAS bicycles work?

While doing a literature review I found out about pedelec sensors (while googling some sensor to find torque applied by the rider). Is anyone who has used it willing to share the mechanism and can you ...
Hamza Afridi's user avatar
1 vote
3 answers
693 views

Are there any bluetooth speed sensor with data logging ability?

I use my bike mostly for getting around town. First I used smartphone gps apps to record my trips, but I often forgot to start or stop recording. Then I used a bicycle computer, but I didn't like it ...
Balint's user avatar
  • 21
2 votes
1 answer
343 views

Can you identify this Cateye HR Sensor E product model?

I must've bought this like 4-5 years ago. My fat ass never got around to using it. I've since lost the Cateye watch I bought with it. Can anyone identify the model? Do you know if it has a ANT+ ...
Tai Sem's user avatar
  • 21
1 vote
3 answers
7k views

Problems with Edge 510 Cadence/Speed Sensor

I have been looking online for a while on how to fix a bug with my Garmin Edge 510 Cadence/Speed sensor but no luck, and now I'm indoors training it's more important that it works (so I can get "speed"...
rg255's user avatar
  • 1,097
3 votes
2 answers
203 views

Will speed/cadence sensor work with 650c bicycle

I plan to use speed/cadence sensor, however my bicycle wheel size is 650c. I guess, there are no problem about cadence. But for speed (wheel speed sensor), will it work correctly?
Chayanon Subrpa's user avatar
4 votes
3 answers
1k views

Speed and Cadence Bike Sensor Opinions

I'm looking to start tracking my speed and cadence for my iOS app, Cycle Meter. The app works great for distance, time, but is not accurate at all for measuring my speed. So I'm thinking of buying ...
fady's user avatar
  • 507