Vortex Cadence/Speed Sensor ANT+/Bluetooth 4.0, Outdoor/Indoor Wireless IPX7 Dual Modes Bike Computer RPM Sensor for Road Bike/Spinning Bike/MTB

Bought this for my daughters bike so wouldn't have to buy another "G" brand name at their price. Easy to set up and connects to the computer no problem. It is off on its accuracy sometimes, that is the only reason I removed a star. Bottom line, worth the money.

This is a perfect cheaper alternative to the equivalent Garmin sensor. It was very easy to pair with my Garmin watch through the phone app. I now have precisely the same distance counting as my MTB mates with other types of sensors. I'm satisfied with it so far.

Funciona bien, puedes ponerlo En modo cadencia o velocidad. Tengo un par de años usándolo y funciona bien

Let's start with fundamentals, the sensor transmits whe it wants and the information it wants. If you pedal at a steady cadence you can see the indicator constantly changing by a lot, so the average is a disaster. Then it's the way it attaches to the crank with a single rubber band (O ring)...if it fails due to rubbingm sunlight, cleaning products...then bye-bye sensor. Had it for 3 days and that was the end of my patience. Got the Wahoo!

I wanted this for an Enduro app on my phone that is more accurate with a programmed Bluetooth wheel sensor. Standard gps was somewhat inaccurate. Just attach it to the front or rear hub, pair it to the phone, and when running my app, it immediately sees the sensor.

Some reviews that I've seen were mixed. It works great. You have to follow the process to wake them so they connect. Then when you record your ride you will see the data transmit to the bike computer and phone.

As if it wasn't enough having to sign up for the XOSS app in order to use it so I can assign one of the sensors to speed, I tried and tried to get it to detect both sensors on a Garmin Edge computer, but consistently, only cadence was detected. In the process of trying to make it work, the battery on the cadence sensor lost almost 5% of its charge. That said-- It does appear to be a high quality item and fits nicely on the crank arm and wheel hub with the supplied pads and bands. This is likely an excellent product if you have a XOSS bike computer, but if you have only Garmin, it's a pain to make it work, and ended up impossible (for me, at least) to detect as a speed sensor.

Very easy to install, great simple instructions, and if your just starting out on your cycle training and are not sure how much of the gear that's out there you need. Start with these!