15 Best Cycling Speed and Cadence Sensors

best speed and cadence sensor

Whether you’re training for a Gran Fondo event or you simply want to improve your performance on the bike, keep your performance in check these best speed and cadence sensors for indoor cycling to outdoor rides on your fat tire electric bike.

You can boost your workout even more by pairing your bike cadence or speed sensor with a compatible GPS bike computer.

What Are the Best Bike Speed and Cadence Sensors in 2021?

garmin speed and cadence sensor Amazon Customer Reviews
  • No head unit required
  • ANT+ and Bluetooth
  • Self-calibrates to compatible devices
Price: $54.30 Shop at Amazon Shop now Read our review
best speed and cadence sensor Amazon Customer Reviews
  • Mounts are included
  • Bluetooth 4.0 and ANT+ connectivity
  • Ideal for outdoor and indoor use
Price: $69.99 Shop at Amazon Shop now Read our review
best speed and cadence sensor Amazon Customer Reviews
  • Bluetooth technology
  • Compatible with many devices
  • Waterproof and dustproof
Price: $36.99 Shop at Amazon Shop now Read our review
speed cadence sensor Amazon Customer Reviews
  • Bluetooth 4.0 and ANT+
  • Waterproof
  • Wireless connectivity
Price: $51.00 Shop at Amazon Shop now Read our review
moofit speed and cadence sensor Amazon Customer Reviews
  • Accurate real-time tracking
  • Compatible with most apps and computers
  • Works with iPhone and Android devices
Price: $35.99 Shop at Amazon Shop now Read our review
cycplus cadence sensor Amazon Customer Reviews
  • Easy to install
  • Can be swapped between bikes
  • Waterproof construction
Price: $29.99 Shop at Amazon Shop now Read our review
cadence sensor Amazon Customer Reviews
  • ANT+ connectivity
  • Easy to set up
  • Accurate readings
Price: $28.95 Shop at Amazon Shop now Read our review
cadence sensor Amazon Customer Reviews
  • Measures speed and cadence
  • ANT+ connectivity
  • Easily mounts onto chainstay
Price: $22.99 Shop at Amazon Shop now Read our review
speed cadence sensor Amazon Customer Reviews
  • Waterproof
  • Single sensor measures speed or cadence
  • Bluetooth 4.0 and ANT+ connectivity
Price: $16.99 Shop at Amazon Shop now Read our review
bluetooth cadence sensor
  • Easy to install
  • Magnetless design
  • Low-profile shape
Price: $39.95 Shop now at Competitive Cyclist Shop now Read our review
bluetooth speed and cadence sensor Amazon Customer Reviews
  • Compact design
  • Bluetooth smart
  • Firm attachment
Price: $92.98 Shop at Amazon Shop now Read our review
bike cadence sensor Amazon Customer Reviews
  • Bluetooth and ANT+ technology
  • Waterproof
  • Battery can last 400 hours
Price: $38.99 Shop at Amazon Shop now Read our review
CatEye Bluetooth Speed and Cadence Sensor Amazon Customer Reviews
  • Mounting hardware included
  • High speed accuracy
  • Compatible with Bluetooth Smart devices
Price: $59.95 Shop at Amazon Shop now Read our review
speed and cadence sensor Amazon Customer Reviews
  • Compact
  • Waterproof
  • Long-lasting battery
Price: $21.99 Shop at Amazon Shop now Read our review
cycling cadence sensor
  • Easy to mount
  • Magnet-less design
  • Waterproof
Price: $39.95 Shop now at Competitive Cyclist Shop now Read our review
Our Unbiased Reviews
  1. 1. Best Bike Speed and Cadence Sensor: Garmin Speed 2 & Cadence 2 Bundle

    Pros:
    • Both sensors are easy to install
    • Sensors can be switched between bikes
    • Speed sensor has an odometer
    Cons:
    • Some complaints of connectivity issues
    • Doesn't have universal device compatibility
    • May interfere with power meters if installed on same wheel

    If you’re looking for the best speed and cadence sensors for Zwift rides on your bike trainer, the Garmin Speed 2 & Cadence 2 Sensor duo stands out for its ability to accurately transmit data using ANT+ and Bluetooth Low Energy (BLE) technology.

    Whether you’re riding indoors or outside, its affordable price tag and dependable results propel this second-generation Garmin speed and cadence sensor to the top of our list. The biggest change over the outgoing version is the inclusion of Bluetooth Smart technology.

    The previous Garmin speed and cadence sensor only had ANT+ connectivity. ANT+ and Bluetooth Low Energy technology accurately transmit live speed, distance, and cadence data to compatible displays and apps.

    The speed sensor has an odometer function to track your distance as you pedal. Each sensor is easy to install and can be easily switched between bikes. The wireless sensors also don’t have magnets.

    The Garmin Speed 2 sensor (sold separately) attaches to the hub of either bike wheel. It also self-calibrates with your compatible Garmin device, including the Edge cycling computer. No head unit is required. The cadence sensor can be attached to crank arms of any size

     

  2. 2. Wahoo RPM Speed & Cadence Sensor

    Pros:
    • Magnetless sensors for easy installation
    • Works with iPhone, Android and bike computers
    • Compatible with Zwift and many popular cycling apps
    Cons:
    • Can be tough to install on non-traditional wheel hubs
    • Readings can be slightly inaccurate at times
    • Some riders complain of intermittent connectivity issues

    Capture crucial data about your speed and cadence with the Wahoo RPM Speed & Cadence Sensor. Built with integrated Bluetooth and ANT+ technology, the sensors instantly track and transmit information to your compatible smartphone or bike computer. You can even use this speed and cadence sensor duo with your favorite training apps, including Zwift, Strava, RideWithGPS, MapMyRide and Wahoo Fitness.

    Both the speed and cadence sensors come without magnets, which makes them easy to install. The speed sensor mounts onto the wheel hub, while the cadence sensor can be attached to the crank arm or shoe. Both mounts are included, giving you the flexibility to choose the best spot for the sensor.

    The sensors connect wirelessly with Bluetooth 4.0 and ANT+ and will work with an iPhone, Android device, or bike computer. These sensors are also compatible with over 50 popular training apps, including Peloton (currently for iOS users). You can automatically upload your training data to your preferred platform after the ride. 

    This bundle includes the speed and cadence sensor, although you can purchase each sensor separately. All sensors are waterproof and offer a universal fit for your convenience. A replaceable coin cell battery powers each sensor up to a year. 

  3. 3. Magene S3+ Cycling Speed & Cadence Sensor

    Pros:
    • ANT+ and Bluetooth 4.0 connectivity
    • Doesn't require magnets for installation
    • Expected battery life is 400 to 500 hours
    Cons:
    • Doesn't track speed and cadence at the same time
    • Switching modes requires reinstalling the battery
    • Can be tough to use on a spin bike

    Use the Magene S3+ with Zwift, Bkool, TACX, Garmin and other popular training apps. ANT+ and Bluetooth 4.0 connectivity ensure the Magene S3+ Cycling Speed & Cadence Sensor will work with compatible devices, including smartphones, bike computers and more. It can’t be connected to the rear wheel of a spin bike, though, which means it’s exclusively designed for use with your bike trainer.

    You can use this Bluetooth cadence sensor to measure your speed or cadence, but you have to choose between one or the other. To switch modes, you’ll need to reinstall the battery.

    When used as a speed sensor, the device mounts to your bike’s wheel hub. Alternatively, you can attach it to your bike’s crank arm to use as a cadence sensor. Magnets aren’t required for either installation method.

    You can link to multiple devices at once, such as your bike computer and smartphone. As you ride, the sensor will record various data, so you can collect and share it after a ride.

    In terms of battery life, you can expect up to 500 hours per battery. This speed and cadence sensor is also waterproof and dustproof to keep you riding even in inclement weather.

  4. 4. Best Speed & Cadence Sensor for Zwift: Wahoo Blue SC

    Pros:
    • Universal fit for bikes
    • Third party app compatibility
    • Simultaneously measures speed and cadence
    Cons:
    • Need to remove left pedal to mount on the crank arm
    • Some say the sensor may move around on the spokes
    • A few complain of slightly inaccurate speed measurements

    The Wahoo Blue SC Speed and Cadence Sensor offers appealing features for cyclists of all levels, including real-time data transmission to phones and computers, Bluetooth and ANT+ connectivity and compatibility with many popular cycling platforms. Its dual-mode operation also makes the Wahoo Blue SC one of the best speed and cadence sensors for Zwift.

    This speed and cadence sensor is slightly different than the Wahoo RPM cadence and speed sensors. The Blue SC is a single sensor that measures both speed and cadence in one, while the RPM bundle contains two separate sensors. Highlights include waterproof construction, replaceable battery and a universal fit for most bikes.

    This bike speed and cadence sensor is compatible with a wide range of third-party apps, and has both Bluetooth Smart and ANT+ technology. Use it on your favorite routes outdoors or on the trainer. You can use it alongside a power meter for even more comprehensive insight into your training.

  5. 5. MOOFIT Speed & Cadence Sensor

    Pros:
    • Bluetooth 4.0 and ANT+ technology connects the sensors to most devices
    • No need to switch between modes on a single sensor
    • Easy installation that doesn't require magnets
    Cons:
    • Can't choose between ANT+ and Bluetooth modes
    • Instructions aren't very clear
    • Rubber bands don't seem very durable

    Get accurate real-time data as you ride with the MOOFIT Speed and Cadence Sensor. Connecting with devices such as your smartphone, indoor trainer and cycling apps is easy with Bluetooth 4.0 and ANT+ technology. With two separate sensors, you don’t need to worry about removing the battery to switch between modes.

    This sensor duo is compatible with most popular fitness apps, including Peloton, Zwift, Rouvy and Ride with GPS. It also works with Wahoo, but you can only track speed or cadence at a time because of Wahoo’s restrictions. If you want to simultaneously track speed and cadence using your Wahoo app, consider the Wahoo RPM Cycling Speed and Cadence Sensor.

    Installation is as simple as fastening the sensors to your bike’s crank or wheel hub. The cadence sensor attaches to the left crank, while the speed sensor mounts onto the wheel hub. No magnets are required.

    As with most other speed and cadence sensors, this MOOFIT duo uses coin cell batteries. Each battery lasts up to 1 year with regular use. Both sensors are also waterproof and can be used in the rain.

  6. 6. CYCPLUS Speed & Cadence Sensor C3

    Pros:
    • Compatible with most bike head units
    • ANT+ and Bluetooth connectivity makes it compatible with many devices
    • Battery lasts up to 300 hours with regular use
    Cons:
    • Can't be directly paired with Bluetooth
    • Doesn't easily pair with the Strava app
    • Rubber bands for installation aren't very durable

    You can track your speed and cadence with the CYCPLUS Speed & Cadence Sensor C3 bundle. To alternate between the two modes, just remove the battery and toggle the switch to the appropriate position. 

    This cadence sensor duo is widely compatible with most devices, as it has Bluetooth and ANT+ connectivity. You can connect it with your smartphone, fitness watch and cycling apps to accurately record your data and track your progress.

    It’s compatible with many head units, including the CYCPLUS GPS Bike Computer. Although you can’t pair it directly via Bluetooth, several cyclists report that it connects quickly with popular cycling apps, including Wahoo. 

    The CYCPLUS speed and cadence sensors easily attach to any bike with elastic and double-sided tape. You don’t need to worry about using magnets or calibrating the devices. Since the sensors mount to any wheel hub, they’re easy to switch between bikes for your convenience.

    You don’t have to worry about recharging the device after each ride. Instead, a coin cell battery lasts up to 300 hours with regular use. Rainy days also aren’t an issue with this waterproof sensor.

  7. 7. CatEye ANT+ Speed & Cadence Sensor

    Pros:
    • Compatible with most ANT+ computers and devices
    • Includes all the essential mounting hardware
    • Works with most road and hybrid bikes
    Cons:
    • Not designed for mountain bikes
    • Lacks Bluetooth technology
    • Pairing can be tricky

    ANT+ connectivity ensures greater accuracy, which translates to an even better workout on the bike. The CatEye ANT+ Speed & Cadence Sensor is compatible with your favorite ANT+ cycling computers and devices, and will work on most road and hybrid bikes. All of the necessary mounting hardware is incldued, so you can quickly set up and go.

  8. 8. PIONEER ANT+ Speed & Cadence Sensor

    Pros:
    • Sensors attach to the wheel and crank arm
    • Sensors can be used separately
    • Cadence sensor fits most crank arms
    Cons:
    • No Bluetooth connectivity
    • Prone to 2.4GHz network interference
    • Not recommended for use in heavy, prolonged rain

    The PIONEER ANT+ Speed & Cadence Sensor monitors both speed and cadence, so you can keep close tabs on your workouts. Additionally, ANT+ connectivity means instant feedback on compatible devices. You can pair the sensor with your smartphone, bike computer or another compatible device to get a better idea of your speed and cadence measurements when training.

    To get both readings, simply mount the sensor onto your bike’s chainstay and attach the accompanying sensors to the wheel and crank arm. You won’t have to worry about skipping out on crucial data when riding in the rain, as this sensor is waterproof up to six meters.

  9. 9. OPENRIDER R1 Speed & Cadence Sensor

    Pros:
    • Flip a switch to alternate between speed and cadence
    • Compatible with iOS and Android devices
    • Transmits data to popular cycling apps such as Zwift, Garmin, Zwift and Wahoo
    Cons:
    • Automatically enters sleep mode one minute after the bike stops
    • May need to use a coin to flip the switch
    • App can be glitchy

    Instead of having to remove the battery to measure your speed or cadence, you simply have to flip a switch. The OPENRIDER R1 Speed & Cadence Sensor is a single sensor that displays your speed or cadence, but you can’t view both at the same time.

    To see the data as you ride, simply pair this bike speed and cadence sensor to your iOS or Android device. Bluetooth 4.0 and ANT+ connectivity ensures the sensor will work with your compatible device or computer. You can also send the data to your favorite cycling app, whether it’s Garmin, Strava, Zwift, Wahoo or something else.

    Don’t worry about getting this bike sensor wet if you’re caught in the rain, as it’s waterproof. If your sensor is stolen you can use the accompanying app to alert other riders in the area and track it down.

  10. 10. Saris Magnetless Speed or Cadence Sensor

    Pros:
    • Dual-band Bluetooth Smart and ANT+ technology
    • Easily attaches to front or rear crank or hub arm
    • Water-resistant exterior
    Cons:
    • Battery life isn't the best
    • Only measures speed or cadence per session
    • Some competitors are more accurate

    If you’re the type of cyclist who prefers to spend time riding rather than installing gadgets, the Saris Magnetless Speed or Cadence Sensor is for you.

    The sensor can be mounted on your bike’s front or rear hub or non-drive side crank arm for your convenience. Once it’s in place, you don’t need to install magnets to get crucial riding data. Another perk is its low-profile design, which not only means the magnet won’t get in the way as you ride, it also fits a wider range of bikes.

    Dual-band Bluetooth Smart and ANT+ compatibility ensures connectivity with your compatible smartphones and other devices. You can program this sensor to measure cadence or speed, but it won’t measure both simultaneously.

    This Bluetooth sensor requires a coin cell battery for operation. You can expect up to 200 hours of use per battery.

  11. 11. Polar Bluetooth Smart Speed & Cadence Sensor

    Pros:
    • Secure installation
    • Compatible with iOS and Android devices
    • Bluetooth low energy technology
    Cons:
    • Batteries aren't replaceable
    • Limited app compatibility
    • Only works with select Polar bike computers

    The Polar Speed & Cadence Sensor features low energy Bluetooth Smart technology. This set works with a variety of Polar products, including the V800 and V650. It’s also useful for iPhone and Android devices. Riders looking for sleeker sensors will appreciate the compact design of both the speed and cadence sensors.

  12. 12. XOSS Cadence & Speed Sensor

    Pros:
    • Coin cell battery is included
    • No magnets required to install the sensor
    • Works with a variety of Bluetooth-compatible sensors
    Cons:
    • A bit bulky, especially for thinner crank arms
    • Not the most accurate sensor on this list
    • Some question the long-term durability

    Low energy technology is one of the hallmark features of the XOSS Cadence & Speed Sensor. This affordable duo is outfitted with Bluetooth 4.0 technology for greater compatibility with your favorite products from Garmin, Bryton and other bike computers.

    This combination speed and cadence sensor also supports Bluetooth and ANT+ connectivity. In case you’re not familiar, ANT+ is a common wireless technology used in many biking-related devices, including bike computers, cadence and speed sensors, and even bike trainers.

    Switching between speed and cadence monitoring is as simple as reinstalling the battery. Each coin battery lasts about 400 hours. Don’t worry if it starts to rain when you’re out exploring your favorite roads or trails, as both sensors are waterproof.

  13. 13. CatEye Bluetooth Speed & Cadence Sensor

    Pros:
    • Wireless connectivity
    • Easy to set up and install
    • Designed for most road and hybrid tires
    Cons:
    • Relatively limited app compatibility
    • A handful of consumers experience issues connecting to cycling computers
    • Signal may periodically drop

    The CatEye Bluetooth Speed & Cadence Sensor works with Bluetooth Smart devices and computers. All the essential mounting hardware is included, making setup fast and easy. Additionally, it’s compatible with most road and hybrid tires. The sensors deliver high-level accuracy readings. You can use this sensor with most Bluetooth Smart devices.

  14. 14. TAOPE Speed and Cadence Sensor

    Pros:
    • Transmits data via Bluetooth and ANT+
    • Weighs just 9.5 grams
    • Compatible with iOS and Android smartphones and computers
    Cons:
    • Some complaints of connectivity issues
    • Instructions could be better
    • Flimsy attachments

    The TAOPE Speed Cadence Sensor stands out for its extra-small design. The compact speed and cadence sensor weighs just 9.5 grams. Despite its small size, though, the combination sensor has plenty to offer. For starters, data is transmitted via Bluetooth or ANT+ technology. The sensor is compatible with iOS and Android smartphones and computers.

    All you need to do to get started is attach the sensor and head out. Its waterproof construction means you can use the sensor even in foul weather. If your route is especially bumpy, you’ll appreciate the antiseismic properties.

    When it comes to battery life, you can expect up to 320 hours of use.

  15. 15. Bryton Magnet-Less Cadence Sensor

    Pros:
    • Bluetooth 4.0 and ANT+ connectivity
    • Compatible with many smartphones and bike computers
    • Accurately measures crank rotations
    Cons:
    • Doesn't measure speed
    • Some say it doesn't consistently show data
    • A few users struggled with connectivity issues

    If you’d rather not deal with mounting a magnet onto your bike, the Bryton Magnet-Less Cadence Sensor is a refreshing choice. All you need to do is install the cadence sensor onto the crank and secure it with the included rubber rings. Once you begin to pedal, the sensor gets to work measuring your crank rotations.

    Bluetooth 4.0 and ANT+ connectivity lets you transmit your workout data to compatible devices. In fact, you can pair this sensor with many smartphones and bike computers on the market today. An IPX7 waterproof rating means this sensor is submersible and can withstand workouts in the rain.

What Is a Speed or Cadence Sensor? 

Cadence sensors measure your rotations per minute, while speed sensors calculate how fast you're moving. These numbers depend on a variety of factors, including your effort-based speed and which gears you're using.

According to LiveScience.com, a sensor that only measures speed determines how fast you're moving by calculating the speed and trip distance based on the bike's wheel circumference.

Most sensors don't provide output at the same time. Instead, you'll typically need to swap the battery to activate your desired sensor if you have a two-in-one device. Otherwise, consider purchasing the sensors separately. 

We're big fans of the Garmin Speed 2 & Cadence 2 Bundle, which includes both sensors and the necessary equipment to attach them to your bike. Measurements are fast and accurate, whether you're cruising or competing. ANT+ and BLE technology reliably transmit data to your Garmin Edge bike computer and other compatible devices.

Do You Need Speed and Cadence Sensors for Zwift?

Zwift is a hugely popular online cycling training app that allows you to train and compete with other users in a virtual global community.

Since Zwift relies on input from your bike to determine your speed as you ride, the answer to this question depends on your equipment.

If you own a smart bike trainer that automatically transmits this data, you probably don't need additional sensors, unless you're concerned about accuracy. A compatible power meter also works.

The app supports all speed and/or cadence sensors that have ANT+ or Bluetooth Low Energy connections.

We've reviewed some of the best speed and cadence sensors for Zwift, including the Garmin Speed Sensor 2 and Cadence Sensor 2 and the Wahoo BlueSC. Both sensors transmit data using ANT+ and BLE technology.

Are Cadence Sensors worth It?

Even if you're not gearing up for a specific event, a cadence sensor can help you stay within the optimal range of 90 RPMs. A Bluetooth speed and cadence sensor can also seamlessly transmit data to your smartphone or cycling computer to help you monitor your efforts.

In cycling, cadence is measured as the number of pedal revolutions per minute. Many factors help determine your cadence, from gearing to effort and even your fitness level. Having the right cadence counter can make it easier to track and monitor your progress throughout the season.

If you're an experienced cyclist, you probably have a good understanding of the ideal cadence and speed you want to maintain during workouts and races. However, if you're just starting out, a bike cadence sensor can be a valuable tool to keep workouts consistent and track improvements. Many of the best indoor cycling bikes have this information built-in for easy access. 

Options such as a Bluetooth cadence sensor, which wirelessly transmits data, or a device that simultaneously monitors speed and cadence, are appealing to both beginner and advanced riders.

Where Should I Place My Cadence Sensor?

Where you place your cadence sensor largely depends on the size and type of sensor. For example, some cadence sensors use a magnet to calculate your crank rotations, while others have a magnet-less design. Most cadence sensors are designed to go on your bike's crank arm. However, the sensor should be placed where it won't interfere with the frame as the crank rotates.

Some sensors come with zip ties to securely attach to your bike, but you may use a strong double-sided adhesive to keep it in place. Some cadence sensors can also be mounted on your cycling shoe by clipping it to a strap or your shoestrings.

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