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Unstable Speed with Speed Sensor connected

Anyone else experiencing fluctuating speed values? Connected is a Garmin wheel speed sensor (Ant+) and for whatever reason (FW update?) the speed jumps around. I deleted and reconnected the sensor, and I replaced the sensor battery. No change. Any help is highly appreciated!

Top Replies

6228927 over 4 years ago +2

Garmin sensors are too sensitive to type of road etc. I bought Wahoo. Not problem at all. They are far superior and they communicate with my Garmin 1030.
pdxfisher over 7 years ago +1

I know I have seen posts about chains becoming magnetized and interfering with sensors on back wheel. If it is on your rear wheel you might want to try moving sensor to front hub.
Wooooooooo!!!!!! over 3 years ago +1

Same issue. called customer support. after chatting a while, the rep reveals this is a common complain and that there is no fix for it.... Think I;ll go back to the old magnet sensor. This magnetomer based…

All Replies

0 6228927 over 4 years ago

Garmin sensors are too sensitive to type of road etc. I bought Wahoo. Not problem at all. They are far superior and they communicate with my Garmin 1030.

0 Fieser-Kardinal over 4 years ago

I think this was somehow introduced with the newer firmware, like v9.5. I always used a speed sensor and never, ever had problems with auto pause while Mountainbiking. With the newer firmwares, when climbing steep uphills the Edge will go for Auto Pause -> Continue -> Auto Pause -> Continue the whole time. As long as you bike faster everything seems to be going well. Auto Pause is programmed to Manual with 1kmh.

0 FELIX405 over 4 years ago

I am seeing this with a Garmin ANT+ sensor that is attached to the hub of my rear wheel. Never noticed before but after a battery change on the sensor I have fluctuating speeds and occasionally my 1030 goes in to auto pause because speed drops to 0. It could take maybe 10 seconds before it resumes.

0 FELIX405 over 4 years ago in reply to 6228927

I have a WAHOO sensor on my other bike and it was been working well so far. But so did the Garmin sensor unit every recently. Is the WAHOO sensor also magnetic?

0 mcinner1 over 4 years ago in reply to FELIX405

FELIX405 said:
Is the WAHOO sensor also magnetic?

It is „magnetless“.
But of course it works with magnetic fields - like Garmin does.

Google is your friend.
https://eu.wahoofitness.com/devices/bike-sensors/bluetooth-speed-sensor

0 Fieser-Kardinal over 4 years ago in reply to FELIX405

Did you shorten both plus and minus of the sensor with a paper-clip or at least waited a few minutes before re-inserting battery?

0 FELIX405 over 4 years ago in reply to Fieser-Kardinal

Definitely because I was fiddling for a long time with this insert in the cap of the sensor (with a "+" sign).

0 Gavin over 4 years ago

I experienced the same today. I tried disconnecting and reconnecting and also moved from rear wheel to front wheel but the issue remained. I have a cadence sensor as well as a speed sensor, and I had connected both individually as bought on separate occasions. So I decided to remove both, and reconnect both together choosing the option on my Garmin edge 830 to connect Speed/Cadence sensor. Following this, the issue appears to have been resolved.

0 Wooooooooo!!!!!! over 3 years ago

Same issue. called customer support. after chatting a while, the rep reveals this is a common complain and that there is no fix for it.... Think I;ll go back to the old magnet sensor. This magnetomer based ones are just too unstable.

0 verscph over 2 years ago in reply to Lutzger

Same here, thanks for the tip! My chain has been replaced, aparently with a magnetic one. Moving the sensor to the front wheel fixed the issue!