Elevation Expeditions: Speed and Cadence from Power Tap

Power Tap Speed/Cadence Sensor Installed On Bicycle Crank Arm

I got my first cycling computer when I was 15 years old, and my first objective was to hit 50mph downhill. So on a summer afternoon I climbed to Sunset Rock overlooking Sparta, TN, cinched down the toe clip straps over my tennis shoes, and started hammering. I only weighed 135lbs wet so I had to rely on raw power to reach top speed. It took about two very dangerous, gravity-embracing minutes, but I did it! I was the fastest guy in town on a bike, and nobody could prove me wrong, because Strava hadn't been invented yet.

I'm a little older now and maybe a little wiser... or maybe not, but I'm still using technology to enhance my cycling experience. Sensors are all the rage these days; speed, cadence, heart rate, power, temperature, elevation gain, undulation... ok, that last one may or may not be available. If you find one let me know.

But today I've got a quick review for you on speed/cadence sensor technology, provided by PowerTap.

Power Tap Speed Cadence/Sensor Compared To The Size Of A Quarter

The speed/cadence sensor I have used for several years works fine, but its bulky. Like, 2004 desktop computer kind of bulky, and that's always bugged me. In the age of ultra thin smartphones it's time to apply this technology to my bike, where aerodynamics actually matter.

I recently tested the Magnetless Speed or Cadence Sensor for PowerTap. Its dual band Bluetooth Smart and ANT+ comparability makes it easy to use with your iPhone via the PowerTap Mobile app or with one of many cycling computers.

The size of this sensor speaks for itself. It's not much bigger than a quarter and it doesn't require a separate magnet, so it's just one piece. Its low profile makes for easy attachment to your crank arm if you're using it for cadence. A molded rubber attachment is included for easy mounting to your hub as a speed sensor.

Setup is quick and easy, basically you put the battery in and lay flat for speed, or hold vertical for cadence. Syncing takes a few seconds and you're on the road. Watch this quick video from PowerTap for detailed instructions.

If you're looking to add speed/cadence to your bike, or replace an old bulky sensor take a look at PowerTap. The major benefits I see in this device are 1. Size (and we all know that size matters), and 2. Bluetooth for the PowerTap Mobile app. I travel frequently and either take a bike or rent one. When I rent I never have cadence. This device can fix that.

And don't forget that PowerTap offers many other options to meet your data needs.