The Kona World Ironman Championships is over for another year. As part of event registration, the organisers do a count of equipment choices, and this includes power meter brand if fitted to a competitor's bike.
So just for fun, I thought I'd look at the prevalence of power meter usage by Kona competitors for the last five years, including this year. I managed, with a little help from the wattage forum and Google, to locate the data and compiled them into table and chart form. Click on the images to see a larger version.
We can see three major power meter brands: SRM, Powertap and Quarq, have dominated the Kona power meter landscape to date, with Quarq in particular showing strong growth over this period.
Power2Max have begun to make inroads in recent years, and we can also see the emergence in 2013 of newer power meter offerings from Rotor, Stages and Garmin. The old Polar power meter is a distant memory, and ergomo usage never really got going, although a few souls were still using them up to 2012.
It appears the overall solid increase in usage of power meters by those competing at Kona has largely been satisfied by uptake of newer power meter brands. It would be risky to assume this translates directly into general market trends for power meter usage but it certainly provides a good snapshot of the trends for Ironman athletes.
The data on total bike numbers and power meter counts were obtained from these website links by Lava Magazine (2010-2013) and Triathlete Magazine (2009):
2013 Kona IM Bike Count
2012 Kona IM Bike Count
2011 Kona IM Bike Count
2010 Kona IM Bike Count
2009 Kona IM Bike Count