A sneak peek at two new PowerTap products

Like almost every other company in the sports technology world, everyone is here at CES.  And that’s true even when you don’t actually have a booth, such as the case with CycleOps/PowerTap.

Despite the lack of floor space I had the chance to catch-up with them, and in doing so complete a bit of a handoff of two early beta products that they’re working on.  Of course, this isn’t all they’re working on for this year, but it seems like a good way to kickoff 2015.  Let’s get right to the goods.

The Joule GPS with Bluetooth Smart:


First up we’ve got a revamped version of the Joule GPS.  This update is primarily focused on two areas – Bluetooth Smart connectivity and GPS acquisition.

The first portion – Bluetooth Smart enablement – is covering two different scenarios.  One of which will be enabled at launch and then the second later in the year.  Up front at launch the unit is enabled to sync with your mobile phone via the PowerTap Mobile app.  This means that you can go ahead and download your ride straight to your phone via Bluetooth Smart. Then from there you can sync the ride data to sites including Strava, TrainingPeaks, MapMyRide and others.

Then, later in the year (Q4 2015) they’ll be enabling the ability to connect directly to Bluetooth Smart sensors (such as power meters, heart rate straps, speed/cadence sensors/etc…).  They’ve future-proofed the device a bit by including the hardware upfront to do this, but they won’t have all the software components in place at launch to enable it.  Still, it’s certainly better to stash the hardware in there now and take advantage of it later via a free firmware update.


The second major portion – GPS enhancements – are aimed at speeding up GPS acquisition time.  The folks at PowerTap have told me that it’s been sliced in half compared to current Joule GPS acquisition times.

In addition to all of that they’ve also added the ability to turn off the Auto Start function and go to pure manual control.  This is something I’ve never much liked in the past with the CycleOps units in that I want to manually start and stop my rides and not have it be dependent on autosensing.  With Auto Start off, you’ll use the minus (-) button to control the stop/start function, while the plus (+) button will iterate through the dashboard metrics.  Wootage!

Finally, the unit is planned to start shipping late February 2015 with a retail of $249US, or, you can get the PowerCal included for $329US.

New High-Speed Data ANT+ PowerTap Cap:


Next we’ve got a new higher speed PowerTap cap, also known as the PowerCap.  This cap slots onto any of the G3 PowerTap wheelsets to allow you to transmit power at a higher data rate over ANT+.  It’s the same concept as the other PowerTap caps such as the ability to change from the ANT+ cap to the Bluetooth Smart cap.

With the PowerCap, the unit will broadcast over ANT+ at up to 4Hz (aka four times a second), which is an increase from the more common 1Hz (one time a second).  The exact broadcasting rate depends on the speed of the wheel, but they noted that it’ll top out at 4Hz at 12MPH.  Since the majority of us ride faster than 12MPH (except up crazy steep mountains), it’ll work out just fine.  And, for those going slower than 12MPH on said mountains…let’s be honest, high speed power data won’t matter much there anyway.

The idea behind the high speed data rates is to provide more resolution for certain applications where athletes want power data to be captured better and with more detail.  A common example is track starts.  They’re currently testing the higher speed data caps with some Olympic track programs and taking feedback from those entities on how to improve it.

Of course, there is an element here that does require a head unit that can record the higher resolution data (beyond the Joule GPS).  For example, while a Garmin unit will pair just fine to the high speed data cap, it won’t actually record any higher resolution data than the 1s data Garmin does today (like every other unit on the market today, except SRM at .5s).


Still, I think this is just the beginning of higher speed data.  It was discussed this past year at the ANT+ Symposium in September within the Power Meter Technical Working Group (TWG), and it’s also been a topic of conversation within the bounds of the Bluetooth Smart side as well.

Many power meter companies are interested in this, though it will certainly take more than just transmission.  It also takes capturing the higher data rates as well as the software tools to analyze them (i.e. those such as TrainingPeaks).

Finally, they don’t yet have a specific timeline for release, nor exact pricing for the PowerCap.

With that, feel free to drop any questions below and I’d be happy to track down answers.

Welcome to CES 2015! Don’t forget to check out all my CES 2015 coverage, as well as my continual updates throughout the day on Twitter.  It’s gonna be a crazy busy week!


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  1. I’ve heard one advantage of Computrainer is the higher transmission speeds available via wired vs wireless communication (especially for products like Spin Scan), and that a lot of the pedal stroke analysis isn’t useful unless you can transmit the data multiple times per second- meaning multiple times per pedal stroke. It seems like Garmin is attempting to show some of this data via it’s Cycling Dynamics software, but with slower wireless transmission, how does that compare to this new option and to the wired data transmission available via Computrainer?

    • Carey Jung

      I don’t know anything about ANT+ data streams or transmission protocols, but I don’t see why transmission rate is necessarily tied to data capture rate. Why couldn’t a power meter capture data four or more times a second, but transmit it (in batches) every second?

  2. Scott White

    does the Pioneer head unit also capture data at a faster rate?

  3. Eli

    High speed data before dual ant/ble support? Any reason they don’t just add blue support to this unit and then just have one cap on the market?

  4. Jonny Rando

    I had one of the original Joule 2.0 computers (CycleOps Joule 2.0), which was a mostly miss for me. The metrics were nice, but the short battery life, not supporting larger SD cards, etc, etc has made me not want to update to any further Joule products.

    Their trainers and PT wheels still rock, I’ll leave the computer and data recording to other companies (IE: Garmin mainly for me).

  5. Tisztul_A_Visztula

    Auto start OFF is also available for Joule GPS version 1?

  6. Steve S

    Weak link: PowerTap mobile app. Hardware looks pretty solid, but useless with a confusing mess of an app like the PowerTap app is right now. An update won’t help. That app needs a complete overhaul and then even then it will be hard to beat something as solid and usable as the Wahoo Fitness app (which now records both HR and power streams from the powercal HR strap).

  7. Wouldn’t it be simpler to leverage phone apps and Connect IQ to record at a higher rate (if that is possible with Connect IQ)?

    As a Powertap user, I would be much more interested in a dual broadcast cap.

  8. BergHügi

    With a WASP acquisition with 4 Hz should be no probleme. Where can I get it as soon as possible? I am desperately waiting for it for indoor velodrome aero testing!

  9. Jonathan

    Ray, have you got any updates with the beta-testing?

    Will the Joule GPS+ really be ready for shipping end of Feb as expected by PowerTap at CES?

    Will the disabling of the “Auto Start function” feature be trickled down as a firmware update to the current Joule GPS?

    Any release timeline/pricing for the PowerCap?

  10. Michael

    Hello, when using a speed/cadence sensor on the joule gps+, does it use it has the main speed/distance source rather than the gps since gps tend to be unprecise? thank you

  11. Anthony

    Hi Ray:

    Is there a full review in the works for this? I would be especially interested in the real-time hill gradient display, which seems to be too slow in the Garmin Edge 520.


    • No, it’s not on my list to put together an in-depth review on the Joule GPS with Bluetooth Smart. Honestly, nobody has asked about a review since about the time this was published. :/

  12. Sean

    Any word on the high-speed ANT+ PowerCap?