Comparison test:
…and…
 
This weekend I wrote about the first ride PowerCal (see here).

Now, I have more data about these rides.
I did 4 rides of varying distances, on two different bikes, each with different profiles, and I compared the power readings by capturing them on two separate Garmin units pictured above.
On this weekend’s post, I made a numerical comparison between the rides, by comparing the power average, normalized power and TSS calculation… This time, I’m focusing on pattern comparison.
The objective was to identify the power pattern exhibited by PowerCal and …

UPDATE: There is a new post on PowerCal vs PowerTap comparisons.
…and…
About a year ago, CycleOps announced a revolutionary new device that would allow the calculation of power output during a bike ride through wearing a heart rate strap and nothing else. Back then, I wrote about it, and I was very skeptic.
Power meter product for cycling usually measure the force produce by the cyclist by using strain gauges on the crankset, on the pedals or on the rear hub.
The crankset based products, like SRM, Quarq and Power2Max, have …

July 2012 UPDATE: I have now made a review and comparison of PowerCal. See my new post with detailed review and powertap comparison here.
One of he big, and most surprising product announcements from Cycleops two weeks ago was the all-new PowerCal heart rate monitor.
This new device is an ANT+ heart rate monitor strap with a twist… Based on your heart rate, it derives the power you are producing. This is a very surprising announcement from a company that is almost a standard and helped open up and democratize the power …

Wow !!!!
Today was a big day for new toys from Cycleops. In one day they announced a complete new set of power meter hubs, new power meter enable wheelsets, new head units and even a heart rate strap that calculates power based on your heart rate and sends it to a head unit… Cycleops has been busy !!!
The new powertap hubs

Dubbed G3, and coming in August, the PowerTap G3 weighs 325 gram and is a smaller hub than the previous powertap models. Starting at only $799 (for the Pro model) …