Light, compact and easy to fit, the Wahoo RPM Cadence Sensor is an easy add-on for any cyclist wanting to be able to monitor their pedalling rate.
The RPM uses an accelerometer which means you don't need to attach a separate magnet to the chainstay, as needed by most other cadence sensors. That means it's very easy to install, you simply use the double-sided tape or rubber carrier and zip ties to affix it to the non-driveside crank arm, and you're all set.
You'll need a device, such as a Garmin or smartphone, that can communicate with the cadence sensor via either Bluetooth 4.0 or ANT+. I used the latter and the sensor quickly and easily synced with my Garmin Edge 500. If you use a smartphone you can use any app such as Strava, MapMyRide or Wahoo's own Fitness App to make use of the cadence data.
An LED indicates activity, blue to signal Bluetooth connection and red to signal cycling cadence detection.
In testing I found it took about 5-6 seconds for cadence data to be displayed when setting off, but once the sensor was engaged it provided reliable and consistent data with no spikes or anomalies noticed during riding.
The slight delay is an issue if you doing very short intervals on a turbo trainer and want to use cadence, but out on the road and in normal cycling it caused no issue at all. It makes it very easy to monitor your cadence when pedalling, and can help you to hone your pedalling technique or work on certain aspects of training, such as high gear low rpm climbing drills for example.
I've been using 3M double-sided tape, because it's really easy to use, and any concerns about the sensor peeling away when riding through a range of weather conditions, and purposefully splashing through muddy puddles, soon faded away. It didn't budge.
It takes all of five minutes to fit and set up the RPM Cadence Sensor and it works from the off. It's a really easy, lightweight (just 8g) and relatively affordable way to add cadence to your cycling. It's powered by a single coin cell battery and the manufacturer claims it's good for two years; I've not had it long enough to challenge that claim yet.
Simple, light and easy way to add cadence data to your cycling
road.cc test report
Make and model: Wahoo RPM CADENCE SENSOR
Size tested: 15
Tell us what the product is for, and who it's aimed at. What do the manufacturers say about it? How does that compare to your own feelings about it?
The Wahoo RPM Cadence Sensor is a wireless, magnet-less, lightweight, cycling cadence sensor. This sleek, Bluetooth 4.0 and ANT+ enabled cadence sensor is easy to install, connects wirelessly to your iOS or Android device, and displays your cadence data (through the free Wahoo Fitness App or your favorite cycling app). It can also be worn on your shoe or installed directly on your bike.
Tell us some more about the technical aspects of the product?
Dual Technology: Bluetooth 4.0 and ANT+ compatible
Sleek and lightweight design: Only 7 grams
Easy installation: No magnets!
Two LED lights: Blue to signal Bluetooth connection and red to signal cycling cadence detection.
Shoe mount option: Can be worn on your shoe for spin classes or multiple bikes
Two bike mount options: (1) mount with double sided 3M tape, or (2) use the silicone sleeve and mount with zip ties.
No charging required: Operates on a coin cell battery for up to 2 years
Universal Fit: RPM will work with any bike.
Works with iPhone 4s and newer, Compatible Android devices, iPod Touch (5th generation), the new iPad (3rd and 4th generations)
iPhone 4S and newer
Click here for compatible devices
iPad (3rd gen and newer), iPad Mini, iPad Air
iPod Touch (5th gen)
Tell us how the product performed overall when used for its designed purpose
Works as intended and provides a very easy way to add cadence and Bluetooth and ANT+ communication will work with a host of devices.
Tell us what you particularly liked about the product
Tell us what you particularly disliked about the product
Not all that cheap.
Did you enjoy using the product? Yes.
Would you consider buying the product? Yes.
Would you recommend the product to a friend? Yes.
Anything further to say about the product in conclusion?
It's perhaps an expensive outlay but if you really want cadence and want an easy to fit option, this is a good choice.
About the tester
Age: 31 Height: 180 Weight: 67
I usually ride: My best bike is:
I've been riding for: 10-20 years I ride: Every day I would class myself as: Expert
I regularly do the following types of riding: road racing, time trialling, cyclo cross, commuting, touring, mtb,
David has worked on the road.cc tech team since July 2012. Previously he was editor of Bikemagic.com and before that staff writer at RCUK. He's a seasoned cyclist of all disciplines, from road to mountain biking, touring to cyclo-cross, he only wishes he had time to ride them all. He's mildly competitive, though he'll never admit it, and is a frequent road racer but is too lazy to do really well. He currently resides in the Cotswolds.