Collect crucial bike speed and cadence data during your workout. Easy to attach to most bikes, even easier to read the data on your iPhone when paired with the Wahoo Key or Wahoo Bike Case.

This product will not work with your Apple mobile device unless you have either the Wahoo Key or the Wahoo Bike Case.

  • tethered, independent speed and cadence sensors for optimal placement of each
  • durable, easy to use
  • small with low drag profile
  • can be modified for use with recumbent bikes
    tether is spliced and extended
  • sends and receives signals up to 10 feet
  • compatible with any ANT+ receiving device
  • waterproof up to 5 feet
  • replaceable 3 volt CR2032 coin cell battery
  • Wireless
    ANT+ ultra low power technology license free, 2.4 GHz ISM band operation
  • Weight
    Unit: 18 grams {0.6 ounces}
    Accessories: 12 grams {0.4 ounces}
    Total: 30 grams {1.0 ounces}

Supported Devices


iPhone 3GS, 4, 4S


iPad (1st gen), iPad (2nd gen), iPad (3rd gen)


iPod Touch (4th gen)