CooSpoBike Cadence Speed Sensor BK467, Bluetooth ANT+ Cadence Sensor for GPS Bike Computers, Tracking Cycling Speed and Distance RPM, Compatible with Zwift Wahoo Peloton Openrider Rouvy APP

Excellent cadence sensor. Purchased it to replace my Polar cadence sensor as the battery cannot be replaced. This cadence sensor gets a 10/10 from me as I’ve just had a 30 miles off road test run with the sensor and it performs great. Instantly synced to my Polar M450 head unit. It’s great that this unit will not end up in landfill as you can very easily replace the battery. A well designed unit.

Item easy to set up and works well with the app I downloaded.

Does what it says on the tin. Checked the cadence values against the cadence from my Tacx Flow Smart turbo trainer and it matches fairly well. It looks like the turbo trainer takes a few seconds to catch up. This sensor also links with my Garmin cycle computer.Only weird thing was in the manual it said there's a light indicator that shows if it's on speed mode or cadence mode. No light indicator showing which initially made me wonder if the device was a dud. But connected it to Garmin and it worked. I only bought it for cadence not speed so not really that fussed.

Great price. easy to set up as cadence or speed sensor. connects very easily with Bluetooth (haven't tried ant+ as I don't have anything that uses it) loads of spare O rings plus a curved and flat rubber backing piece. all in all great bit of kit and very small as well. 10/10

Just works as described. No faults, no issues, just works. Used as a cadence sensor linked to Rouvy on a Wahoo trainer. More accurately records cadence, after a couple of revolutions of the peddles (understandably!!).

As described, p&p expensive

Had my sensor set up for cadence and it was very accurate for the ~100km it lasted until it fell off!I had my sensor securely attached to the inside of my crank arm with both the rubber padding and the tight rubber bands, and yet it managed to fall off during a ride.Good value for money and easy to connect to bike computer/mobile app, just make sure you attach it very securely!

I just bought a new bike and wanted to fit speed and cadence sensors that would connect to my Garmin VivoActive 5 watch, so that I could accurately track my activities. These are great! Nicely packaged with rubber “bands” in a variety of sizes and two rubber backing pads - one flat for the cadence sensor and the other with a curve on it to help it sit snugly on a wheel hub. The instructions were clear and simple. Open the battery compartment, remove the thin plastic disc, replace the battery. LED flashes when battery inserted - blue representing Cadence setting, then remove and replace battery a second time and it flashes red to represent Speed setting. Once done they fitted onto the crank (cadence) and hub (speed) easily with the rubber bands. (There is also a spare of each of the three sizes just incase, which is a nice touch).Adding to my Garmin was simple - Settings, Accessories, (I have Auto Discover set to on), Add New, Speed/Cadence and it starts searching for the sensors. A quick spin of the crank and wheel activates the sensor and the watch “sees” it. You’ll add the speed and cadence sensors one at a time since they are separate units. Nearly done! You just need to configure the tyre circumference. Under Accessories you’ll see the speed and cadence sensors listed. Tap the speed sensor entry, and look for the wheel size option. I manually entered mine (no idea how the Auto option works!). You can either try and measure the outer diameter of the tyre and multiply by pi (3.14ish) or lay a tape measure out on the floor, place the bike with the front wheel valve at the 6 o’clock position and at zero on the tape measure and carefully push the bike forward along the edge of the tape until the valve has rotated once and is in the 6 o’clock position again. Take the measurement there and pop it into the watch. (My 700c road tyre was 2136mm just as an idea)Now you’re good to go! Just start the Bike/cycling activity on your watch and it’ll automatically detect the sensors as soon as you start to move.Accuracy looks pretty spot on as I used it on a track which is exactly a mile, and taking the best line around the track, after 5 miles, it showed the mile marker only around 10 feet before I crossed the start/finish line (and to be fair, I probably ran a little wide on a few corners, so the variance was probably down to the line I was taking, not the accuracy of the sensor!).All in all, very pleased with all aspects of these sensors, and they are quite discreet on the bike since they are two sensors with accelerometers and don’t rely on magnets attached to spokes/cranks to activate them.Photos show cadence sensor on Shimano 105 crank arm, speed sensor on Mavic rear hub and the spare rubber bands. The large was just right for the large diameter of the rear hub and the small for the crank arm.6th Feb 2015 - Update - I was so pleased with these that I just bought the Coospo HRM chest band, which also came nicely packaged, was easy to set up and appears to work very well!